


DEAN'S SYSTEM ^^^^| 

of (IreeBlioiise Heat .,,„..__„ 






LIBRARY OF CONGRESS 




DOOlblSfllSA 




Copyright N^ 



COPyRlGHT DEPOSIT. 



DEAN'S SYSTEM 
OF GREENHOUSE HEATING 

BY STEAM OR HOT WATER 



FORMULAS FOR OBTAINING DIFFERENT 
TEMPERATURES 



TABLES GIVING RADIATION NECESSARY PER SQUARE FOOT OF GLASS. 

TABLES GIVING GLASS SURFACE, SIZES OF FLOW AND 

RETURN PIPES, LIST PRICES OF PIPE AND 

FITTINGS, AND OTHER USEFUL 

INFORMATION 



MARK DEffN-j 



AUTHOR AND PUBLISHER OIj ,,, 
'THE STEA/W-FITTERS' COMPUTATION ANlt) PRJcE BOOK. 




PUBLISHED BY MARK Di£AN, BOSTON, MASS. 

PRICE, TWO DOLLARS 

COPYRIGHT IQOI, by MARK DEAN, BOSTON, MASS. 



THE LIBRARY #F 

G%NGRESS, 
Two CoPicA Reoctve* 

APR. 26 1902 

OoratmHT wrtw 

CH.ASS O^XXft NO. 
/ I Cf U- 1^ 

oePY > 



PC 



u 



^3^^ ^^ 



PREFACE. 



SAVING been urged by some of my friends to put into book 
form, for commercial use, the formulas and tables used by 
me in greenhouse heating, I decided to accept the suggestion 
and give herein such data as I think will be most useful to 
any who are required to do greenhouse heating. 

Like all books of its class, the user will find it more and 
more convenient as he becomes better acquainted with its contents. 

It has been the author's desire to limit the tables to such as 
would cover all ordinary cases and thereby keep the book of 
convenient size and the price within reach of all. 

I have endeavored to make explanations to tables so simple 
that all might understand, and yet, I hope they will not prove 
tiresome to those well versed in the business. 

MARK DEAN. 



PERHAPS no other class of buildings require more even tem- 
perature than greenhouses because the life of plants and 
success of the hothouse business depend upon constant heat, and 
as plant life can only be developed to the limit of its vitality and 
beauty when in a temperature best adapted to its growth, the 
subject of heating becomes one of great importance and should, 
therefore, receive mature consideration. 

Steam or hot water are generally conceded to be the only 
systems of practical value for any except small houses, — and are 
best for them. The relative value of steam and hot water de- 
pends materially upon the individual requirements of each case ; 
however, steam is generally acknowledged to be superior for 
large greenhouses because of its adaptability to sudden changes 
in temperature, thus off-setting any rise or fall of the outside 
thermometer. Then too, if properly handled, it should be most 
economical on account of the peculiar requirements. 

Even in severe weather, greenhouses need but little or no 
heat while the sun's rays strike the glass, but must have it 
quickly as the heat from the sun is being withdrawn. It is self 
evident that one barrel of water can be heated more quickly, 
with less fuel, and sent through the pipes faster in the form of 
steam than can ten barrels of water with only the force of 
gravity to send it along. When heated, the ten barrels of water 
will remain hot much longer than one, thus the water becomes a 
sort of storage for heat which, however, is objectionable because 
in the morning, when the sun looks upon the glass, there is 
immediately too much heat, to relieve which, the ventilators are 
opened and the stored heat is wasted. In other words, the fuel 
required to heat the extra nine barrels of water is generally 
thrown away next morning.* 

For many reasons such as shallow boiler-pit, lack of night 
fireman, etc., the points in favor of hot water more than off-set 
the objections already named, and the only way to determine 
which is best is to consider all requirements and conditions of 
each individual case. 

*Tliis of (;oiivse does not apply to or<liii;iry buildings, on the eoutrary, the stor- 
age of heat in the hot water is very advantageous. 



To greenhouse owners who are building and are not equipped 
with drafting board and tools I suggest, as a saving in the end, 
to employ some competent heating engineer to prepare a set of 
working drawings. You might as well expect roses from thistles, 
as good results from a poor boiler and insufficient piping im- 
properly installed. 

I have advised engaging a competent engineer to lay out the 
work, not only to save labor of installing, but also as a saving 
of fuel. For instance, what I have said about steam v.s. hot 
water is equally true, though in a less degree, of hot water in 
large pipes v.s. hot water in small pipes. One four inch pipe 
holds double the amount of water and only has the same radiat- 
ing capacity as two two inch pipes. That is, if it required ten 
barrels of water with four inch pipes, it would only require five 
barrels of water to maintain the same degree of heat in the same 
house with two inch pipes. The smaller the pipe the less water 
it holds per square foot of radiation, therefore use the smallest 
pipe possible consistent with its length i.e., with the amount of 
radiation attached to it. The water in the pipes is being con- 
stantly cooled as it moves along. To get the best results its 
temperature must not be allowed to get too low, therefore, there 
is a limit of length for each size pipe and a pipe too small is as 
bad, or worse, than a pipe too large. On page 33 is a table 
giving limit of length for different size pipes. 

It is not always wise, or even generally so, to copy from 
another plant simply because the owner is satisfied with its 
operation. He may be more easily satisfied than you would, or 
it may be that he gets sufficient heat, but on account of pipes too 
large, pipes too small, or circulation choked (see table page 31 
for equalization of carrying capacities of pipes) his plant is not 
as economical as it should be. The best are none too economical 
and it seems the height of folly to save a few dollars on first cost 
(that is where the trouble often originates) and thereby form a 
source of continual waste. 



DEAN'S SYSTEM OF ESTIMATING 
STEAM AND HOT-WATER HEATING FOR GREENHOUSES. 



CHE system and formulas given under this heading are some 
which the author has used for years and knows to be con- 
venient and reliable. A few moments' study will enable, even 
the inexperienced, to use them to advantage, and when once 
familiar with them, estimating greenhouse heating becomes very 
simple. 

The entire system is based on greenhouses of various widths 
one foot long. If the radiation is sufficient to maintain the re- 
quired temperature in a house one foot long, the same amount 
applied in the same manner will heat the next foot, and so on to 
the end of the house where the pipes are turned across to both 
heat the end and allow for expansion. 

HOW TO USE TABLES ON PAGES 10 AND 11. 

To find the sq. ft. of radiation per lineal foot of house look 
opposite number of feet of "glass equivalent over roof," as 
given in the tables, and under the desired temperature will be 
the amount. 

For total number of square feet of radiation multiply the 
number of square feet required per foot of house by the length 
of the house, plus one-fourth the width of its exposed ends. 

To enable the reader to more easily grasp my ideas 1 here 
illustrate the following : — 

example: 

How many pipes, and of what sizes, would be required to 
heat by steam in zero weather to 55° Fht. a greenhouse 18 x 90 
ft. boarded 3 ft. high on front wall, plus 2 ft. 3 ins. of glass, 
rear wall six ft. high without glass, front sash bars 13 ft. 3 ins. 
long, rear sash bars 7 ft. long? See cut on next page. 

First obtain the distance in glass, or its equivalent, from 
ground over roof to ground on opposite side. 



To reduce ordinary walls, boarded with paper between, to 
glass surface, divide the number of square ft. by 3. If there is 
another lining of boards on inside of posts, thus forming an air 
space, divide by 7. If double boarded and papered both inside 
and outside, with air space between, divide by 10. 




Reduce wall surface to glass by dividing same by three. 

f A=3 ft. 
I E=6 ft. 



I 



9 ft. ~r- 3 to reduce to its equivalent in 
glass surface = 3 ft. 



Glass 

Equivalent 

over 

Roof 



r Wall surface equals 3 ft. Glass exposure 

I B "2 ft. 3 in. 

I C "13 ft. 3 in. 

: D "7 ft. 



Total glass equiva- 25 ft. 6 in. 
lent over roof 



"When glass equivalent is fraction of a foot less than one- 
half, use the next larger "width over roof." 



ON page 10 opposite 254^ and under 55° we find 4.08, the 
amount of radiation necessary per lineal foot of house, 
■which multiplied by the length of the house, plus one-fourth its 
width (90 plus 5 = 95,) equals 387 sq. ft.* 

Under ordinary circumstances it is unnecessary to devote 
special attention to the ends, simply continue the side pipes 
across the exposed ends. 

As the steam main is one of the heating pipes in the green- 
house the amount of radiation in it per foot must be subtracted 
from the total amount required per foot, 4.08 minus .75 equals 
3.33.t We now have 3.33 sq. ft. per ft. of house to be dis- 
tributed in the heating pipes. By reference to diagram on page 
32 it will be observed that it requires either eight 1^" pipes, 
or seven l.V' pipes, and as the house is short the li inch pipes 
are preferable. 

If two 2" flow pipes should prove preferable to one 2^" pipe 
proceed in the same manner. (Reference to table page 12 shows 
that two 2" pipes would have 1.24 sq. ft. of radiation per lineal 
ft.) 4.08 minus 1.24 equals 2.84, the amount to be distributed 
in the heating pipes. Referring again to diagram, page 32, you 
will see that it requires seven 1^ or six 1|" pipes. Proceed in 
the same manner for all houses of ordinary dimensions ; for 
houses of special dimensions see page 15. 

*0n page :51 you .will find that it requires a2.V' pipe to supply this amount of 
steam radiation. 

tFor sq. ft. of radiation per hneal ft. of pii)e see table page 12. 



STEAM. 



RADIATION PER LINEAL FT. 
OF HOUSE. 



Opposite " (Jlass equivalent over roof" and under tlie desired temperature will be found 
llie square feet of radiation necessary to heat the house in zero weather to that temperature. 
To obtain the total radiation for a house multiply the iHiiiil)i'r thus found by the length of 
the house, plus one-fourth the width of thecxposi'd ends. When exact width over roof is 
not given, use next larger. These tables are based on weather from zero to 15° below. 
i<"or temperatures above zero deduct 2 per cent for each degree. For temperatures lower than 
15° below zero add •! per cent for each degree. 



f 1 '^ n» 


TEMPERATURE 


DESIREC 




f 1) o 


TEMPERATURE DESIRED 


W 3 S* 

UJ ^ 


40° 
.72 


45° 


50° 


55° 


60° 


(55° 


70° 

1.2 


40° 


45° 


50° 


55° 


60° 


()5° 


70° 


6 


.8 


.9 


.96 


1.02 


1.11 


33 


3.96 


4.4 


4.96 


5.28 


5.65 


6.11 


6.6 


GJ 


.78 


.87 


.98 


l.tM 


1.11 


1.2 


1.3 


.331 


4.02 


4.47 


5.04 


5.36 


5.74 


(i.2 


6.7 


7 


.84 


.94 


1.05 


1.14 


1.21 


1.3 


1.4 


34' 


4.08 


4.54 


5.12 


544 


5.83 


6.3 


6.8 


7J 


.90 


1. 


1.13 


1.22 


1.28 


1.39 


1.5 


34.5 


4.14 


4.6 


5.19 


5 .52 


5.9 


6.4 


6.9 


8 


.96 


1.06 


1.21 


1.28 


1.38 


1.48 


1.6 


;5,5 


4.2 


4 66 


5.26 


5.6 


5.98 


6.49 


"• 


&\ 


1.02 


l.i:: 


1.28 


1.36 


1.46 


1.57 


1.7 


35J 


4.26 


4.74 


6.34 


5 68 


6.06 


6.58 


7.1 


9 


1.08 


1.2 


1.35 


1.44 


l.,54 


1.66 


1.8 


36 


4.32 


48 


5.42 


5.76 


6.14 


6.67 


7.2 


94 


1.14 


1.26 


1.43 


1.52 


1 .(a 


1.7(; 


1.9 


361 


4.38 


4.86 


P. r 


5 84 


6 24 


6.76 


7.3 


10 


1.2 


1.33 


1..52 


1.6 


1.72 


1.85 


2. 


37' 


444 


4,93 


ri.m 


5 92 


6.32 


6.85 


74 


lOJ 


1.26 


1.4 


1.58 


1.68 


1.81 


1.95 


2.1 


■Al\ 


4.5 


5. 


5.64 


6. 


6.42 


6.94 


7.5 


11 


1.32 


i.4(; 


1 .(>7 


1.76 


1.88 


2.04 


2.2 


38 


4.56 


5.07 


5.72 


6 08 


65 


7.04 


7.6 


llj 


1..3S 


1..-4 


1.73 


1.84 


1.98 


2.13 


•1.3 


38.'. 


4,62 


5.14 


5.79 


6 16 


6.58 


7.13 


7.7 


12 


1.44 


1.6 


1.82 


1 .92 


2.07 


2 .22 


2.4 


39 


4.68 


5.21 


5.86 


6.24 


6,66 


7.22 


7.8 


12 > 


1.51 


1.67 


1.8S 


2. 


2.14 


■liji 


2.5 


39', 


4.74 


5.28 


5.94 


6 32 


6,74 


7.31 


7 9 


13" 


1.56 


i.;3 


1.97 


•I08 


2.24 


2.41 


2.6 


40 


4.8 


535 


6,02 


6.4 


6.83 


7.4 


8. 


13J 


1.62 


1.8 


2.05 


2.16 


2.33 


2.5 


2.7 


40.'. 


4.86 


5.41 


6 1 


6 48 


6 92 


7.49 


8.1 


U 


1.68 


1.87 


2.12 


2.24 


2.41 


2.59 


2.8 


41 


4.92 


5.48 


6.17 


(! 5t> 


7. 


7.58 


8.2 


\i\ 


1.74 


1.93 


2.20 


2.32 


2.5 


2.6S 


2.9 


41.', 


4 98 


5..54 


6.24 


6 64 


7.1 


7.67 


8.3 


15 


1.81 


•J. 


2.26 


2.4 


2. .58 


2.78 


3. 


42 


5.04 


5.6 


6,32 


6,72 


7.19 


7 76 


8,4 


15J 


1.86 


2.07 


2.35 


2.4S 


2.67 


2.87 


3.1 


42J 


5.1 


5.67 


6.4 


6.8 


7 28 


7.85 


8,5 


16 


1.92 


2.14 


2.42 


2.56 


2.76 


2.96 


3.2 


43 


5.16 


5.74 


(!.47 


6.88 


7.37 


7.95 


8,6 


1G> 


1.98 


2.2 


2.50 


'IXA 


2.84 


3.05 


3.3 


43 J 


5.22 


5.81 


6.54 


6 96 


7.46 


8.05 


8.7 


17' 


2.04 


2.27 


2. .58 


I.Vl 


2.93 


3.15 


3.4 


44 


5.28 


5.87 


6.61 


704 


7.. 55 


8 15 


8.8 


17J 


2.11 


2.33 


2.65 


2.8 


3.02 


3.24 


3.5 


444 


5,34 


5.94 


().69 


7 12 


7!64 


8.24 


8.9 


18 


2.16 


2.4 


2.72 


2.88 


3.1 


3.33 


3.(! 


45 


5.4 


6. 


6.76 


7.2 


7.72 


8,33 


9. 


18^ 


2.22 


2.47 


2.8 


2.96 


3.19 


3.43 


3.7 


45.'. 


5 46 


6.06 


6 84 


7.28 


7.8 


8.42 


9,1 


19 


2!2S 


2.54 


2.88 


3.04 


3.28 


3.52 


3^8 


4:i' 


5.52 


0.12 


(>.92 


7.36 


7,88 


8.51 


9.2 


191 


2.34 


2.6 


2.98 


3.12 


3.31) 


3.61 


3.9 


46' 


5..n8 


6 2 


7. 


7.44 


7,96 


8.6 


93 


20 


2.41 


2.67 


3.03 


3.2 


3.40 


3.71 


4. 


47" 


5,(;4 


6.26 


7.07 


7.. 52 


8 05 


8 69 


9.4 


20J 


2.46 


2.73 


3.11 


3.28 


3.53 


3.8 


4.1 


47 J 


5.7 


6.33 


7.14 


7.6 


8 12 


8.78 


9 5 


21 


2.52 


2.8 


3.18 


3.36 


3.62 


3.89 


4.2 


48 


5.76 


6.4 


7.21 


7 68 


8.2 


8 87 


9.6 


211 


2.58 


2.S7 


3.26 


3.44 


3.7 


3.98 


4.3 


48.', 


5.82 


6 47 


7.28 


7,76 


8 28 


8.96 


0,7 


22 


2.64 


2.93 


3.33 


3.52 


3.79 


4.07 


4.4 


40" 


5.88 


6..54 


7,36 


7 84 


§ 36 


9 06 


9,8 


9'>1 


2.71 


3. 


3.41 


3.6 


3.88 


4.16 


4.5 


49.'. 


5.94 


6.6 


7.43 


7.92 


8 46 


9.15 


9.9 


23* 


2.76 


3.07 


3.49 


3.68 


3.96 


4.2() 


4.6 


.50 


6. 


6.66 


7.5 


8. 


8.55 


9 25 


10. 


23J 


2.82 


3.13 


3.56 


3.76 


4.05 


4.:i5 


4.7 


50i 


(!.08 


6.73 


7.57 


8 07 


8.7 


9.33 


10, 


ai' 


2.88 


3.2 


3.64 


3.84 


4.14 


4.45 


4.8 


51" 


6,12 


(i.80 


7.66 


8 16 


8,8 


9 45 


10.2 


241 


2.94 


3.27 


3.71 


3.92 


4.22 


4.54 


4.9 


.51.1 


6.19 


6.87 


7.73 


8 24 


8 88 


9,r>4 


10.3 


25" 


3.01 


3.34 


3.79 


4. 


4.31 


4.63 


5 


52 


6.25 


6.93 


7.80 


8 32 


8 97 


963 


10 4 


25J 


3.06 


3.41 


3.86 


4.08 


4.4 


4.72 


ri.i 


521 


6.30 


7. 


7.88 


8 40 


9,05 


9.72 


10.5 


26 


3.14 


3.47 


3.94 


4.16 


4.48 


4.81 


5.2 


53 


0.36 


7.07 


7.96 


8.48 


9 13 


9.81 


10.6 


26^ 


3.18 


3..54 


4.01 


4.24 


4.57 


4.91 


5.3 


531 


6.43 


7 14 


8.04 


8.. 56 


9 23 


9 91 


10.7 


27 


3.24 


3.6 


4. OS 


4.32 


4.65 


5. 


5.4 


54 


6.48 


7 20 


811 


8.64 


9,31 


10. 


10.8 


274 


3.31 


3.66 


4.17 


4.41 


4.74 


5.1 


5.5 


.54.1 


6.54 


7.27 


8.18 


8.70 


9,40 


10 09 


10,9 


28' 


3.36 


3.74 


4.24 


4.48 


4.83 


5.19 


5.6 


55 


6.60 


7.34 


8.26 


8.78 


9 49 


10.18 


11. 


28J 


3.42 


3.8 


4.32 


4.56 


4.87 


5.28 


5.7 


551 


6.67 


7,40 


8.34 


886 


9,57 


10.27 


11.1 


29' 


3.48 


3.86 


4.36 


4.64 


4.95 


5.37 


5.8 


56 


6.73 


7.47 


8.41 


8.94 


9,66 


10 36 


11.2 


29J 


3.57 


3.93 


4.46 


4.72 


5.03 


5.46 


5.9 


5(;.\ 


(') 79 


7.54 


8.48 


9.04 


9.75 


10 46 


11 3 


.30^ 


3.61 


4. 


4.54 


4;k 


5.12 


5. .55 


(>. 


57" 


6.85 


7 60 


8.55 


9 12 


9 83 


10,55 


114 


30J 


3.66 


4.06 


4.62 


4.88 


5.21 


5.(55 


6.1 


57.1 


6.91 


7.67 


8.64 


9.20 


9.92 


10.65 


11.5 


31 


3.73 


4.13 


4.66 


4.96 


5.3 


5.74 


6.2 


58 


6.97 


7.74 


8.71 


9.28 


10 


10.74 


11.6 


•314 


3.78 


4.2 


4.74 


5.04 


5.39 


5.,S4 


6.3 


.581 


7.03 


7.80 


8.78 


9 36 


10 08 


10,8:3 


11.7 


32 


3.84 


4.26 


4.82 


5.12 


5.48 


5. IK! 


i;.4 


5'.l 


7,0s 


7.87 


8.86 


9,44 


10 17 


10.92 


11.8 


32i 


3.90 


4.34 


4.88 


5.2 


5.57 


(■).()'_' 


(1.5 


5; 1,1, 


7.1.-. 


7.94 


S 94 


9 52 


10 26 


1101 


11,9 



Notp::— If house is ()Oft. wide or over use half the width and double the amount. 
Copyright 1901 by 10 Mark Dean, Boston, Mass. 



HOT WATER. 



RADIATION PER LINEAL 
FT. OF HOUSE. 



Opposite " (41ass e(iuiv;ilont over roof" aiul under the desired temperature will be found 
the square feet of radiation necessary- in zeio weather to heat the house to tliat teniiierature. 
To olitain tlie total radiation for a liouse multiply tlieniuuher thus found l)v the len{i,th of 
the liotise, i>lus one-f(airth tlie widtli of the exi)osed ends. When exact width over roof is 
not fiiven, use next laruer. These tables are based on weather from zero to 15° below. 
l'()rtem|)eiature; above /.erodeduct -.' per cent for eaelidejp'ee. For temperatures lower than 
150 below y.ei-Q add 2 jier cent tor each depee. 



So 


TEMPERATURE DESIRED 




TEMPERATURE DESIRED 


O 5. 5^ 
















n 3 1' 
















U-l o 


40° 


45° 


50° 


55° 


60° 


65° 


70° 




40° 


45° 


50° 


55° 


60° 


65° 


70° 


6 


1~2 


1.34 


1.5 


1.6 


1.72 


1.85 


2. 


33 


6.6 


7.33 


8.25 


8.8 


9.43 


10.16 


11. 


(5J 


1.3 


1.45 


l.(B 


1.74 


1.86 


2. 


2.17 


33A 


6.7 


7.44 


8.38 


8.93 


9.57 


10.32 


11.17 




1".4 


1..56 


1.75 


1.87 


2. 


2.16 


2.33 


34 


6.8 


7. ,55 


8.5 


9.06 


9.72 


10.47 


n:.n 


7.\ 


1.5 


1.67 


1.88 


o_ 


2.14 


2.32 


2.5 


34J 


6.9 


7.66 


8.63 


9.2 


9.86 


10.63 


11.5 


8' 


1.6 


1.78 


2. 


2!l3 


2.28 


2.48 


2.67 


35 


7. 


7.78 


8.75 


9.33 


10. 


10.77 


11.67 


8.\ 


1.7 


1.89 


2.13 


2.26 


2.43 


2.63 


2.83 


35i 


7.1 


7.89 


8.88 


9.46 


10.15 


10.92 


11.84 


9" 


1.8 


2. 


2.25 


2.4 


2.57 


2.79 


3. 


36 


7.2 


8. 


9. 


9.6 


10.29 


11.08 


12. 


94 


1.9 


2.11 


2.38 


2..53 


2.72 


2.92 


3.17 


.364 


7.3 


8.11 


9.13 


9.73 


10.42 


11.24 


12.17 


10 


2. 


2.22 


2.5 


2.66 


2^86 


3.08 


3.34 


37 


7.4 


8.22 


9.25 


9.88 


10..57 


11.39 


12.34 


lOi 


211 


2^33 


2.63 


2.8 


3. 


3.24 


3.5 


374 


7.5 


8.33 


9.38 


10. 


10.72 


11.54 


12.5 


11 


2.2 


2.44 


3.75 


2.93 


3.15 


3.39 


3.67 


38 


7.6 


8.44 


9.5 


10.13 


10.86 


11.7 


12.67 


114 


2!3 


2..55 


2.88 


3.06 


3.29 


3.,54 


3.84 


38J 


7.7 


8. .55 


9.62 


10.26 


11. 


11.85 


12.84 


12 


2.4 


2.66 


3. 


3.2 


3.43 


3.7 


4. 


39 


7.8 


8.66 


9.75 


10.4 


11.15 


12. 


13. 


12.J 


2.5 


2.78 


3.13 


3. .33 


3. .58 


3.85 


4.17 


39J 


7.9 


8.78 


9.88 


10.53 


11.29 


12.16 


13.17 


13 


2.6 


2.89 


3.25 


3.46 


3.72 


4. 


4.34 


40 


8. 


8.89 


10. 


10.66 


11.43 


12.32 


13.34 


131 


2.7 


3. 


3.38 


3.6 


3.86 


4.16 


4.5 


40 J 


8.1 


9. 


10.13 


10.8 


11. .57 


12.48 


13.5 


14 


'l8 


.3.11 


3.5 


3.73 


4. 


4.32 


4.67 


41 


8.2 


9.11 


10.25 


10.93 


11.72 


12.63 


13.67 


U.J 


2.9 


3.22 


3.63 


3.87 


4.15 


4.47 


4.48 


411 


8.3 


9.22 


10.38 


11.06 


11.86 


12.77 


13.83 


I.'-) 


3. 


3.33 


3.75 


4. 


4.29 


4.63 


5. 


42 


8.4 


9.33 


10.5 


11.2 


12. 


12.92 


14. 


15* 


3.1 


3.44 


3.88 


4.13 


4.43 


4.77 


5.17 


421 


8.5 


9.44 


10.63 


11.33 


12.16 


13.08 


14.17 


IG 


3.2 


3..55 


4. 


4.26 


4..57 


4.92 


5.34 


43 


8.6 


9. .55 


10.75 


11.46 


12.29 


13.24 


14.34 


ICJ 


3.3 


3.6() 


4.13 


4.4 


4.72 


5.08 


5.5 


43J 


8.7 


9.66 


10.88 


11.6 


12.42 


13.39 


14.5 


17 


3.4 


3.78 


4.25 


4.53 


4.86 


5.24 


5.67 


44 


8.8 


9.7s 


11. 


11.73 


12 ..57 


13.,54 


14.67 


l"4 


3.5 


3.89 


4.38 


4.67 


5. 


5.39 


5.84 


441 


8.9 


9.89 


11.13 


11.88 


12.72 


13.7 


14.83 


18 


3.6 


4. 


4.5 


4.8 


5.15 


5.54 


6. 


45" 


9. 


10. 


11.25 


12. 


12.86 


13.85 


15. 


ISA 


3.7 


4.11 


4.63 


4.93 


5.29 


5.7 


6.17 


451 


9.1 


10.11 


11.38 


12.13 


13. 


14. 


15.17 


19' 


3.8 


4.22 


4.75 


5.06 


5.43 


5.85 


6..34 


46" 


9.2 


10.22 


11.5 


12.26 


13.15 


14.16 


15.34 


19.'. 


3.9 


4.;« 


4.88 


5.2 


5. ,58 


6. 


6.5 


461 


9.3 


10.33 


11.62 


12.4 


13.29 


14.32 


15.5 


'20 


4. 


4.44 


5. 


5.33 


5.72 


0.16 


6.67 


47' 


9.4 


10.44 


11.75 


12..53 


13.43 


14.47 


15.67 


•m. 


4.1 


4.55 


5.13 


5.46 


5.86 


6.32 


6.84 


474 


9.5 


10.55 


11.88 


12.66 


13.57 


14.63 


15.83 


21 


4.2 


4.66 


5.25 


5.6 


6. 


6.47 


7. 


48 


9.6 


10.66 


12. 


12.8 


13.72 


14.77 


16. 


'in 


4.3 


4.78 


5.38 


5.74 


6.15 


6.63 


7.17 


4SA 


9.7 


10.78 


12.13 


12.93 


13.86 


14.92 


16.17 


22 


4.4 


4.89 


5.5 


5.88 


6.29 


6.77 


7.34 


49 


9.8 


10.89 


12.25 


13.06 


14. 


15.08 


1(>.34 


22 .' 


4.5 


5. 


5.62 


6. 


6.43 


(i.92 


7.5 


49 J 


9.9 


11. 


12.38 


13.2 


14.15 


15.24 


16.5 


23' 


4.6 


5.11 


5.75 


6.13 


6.57 


7.08 


7.67 


50 


10. 


11.11 


12.5 


13.33 


14.29 


15.39 


16.67 


23 .J 


4.7 


5.22 


5.88 


6.26 


6.72. 


7.24 


7.84 


504 


10.1 


11.22 


12.62 


13.46 


14.43 


15. .54 


16.84 


24 


4.8 


5.33 


6. 


6.4 


6.86 


7.39 


8. 


51 


10.2 


11.33 


12.75 


13.6 


14. .57 


15.7 


17. 


241 


4.9 


5.44 


6.13 


6.53 


7. 


7.54 


8.17 


514 


10.3 


11.44 


12.88 


13.73 


14.72 


15.85 


17.17 


25' 


5. 


5.55 


6.25 


6.66 


7.15 


7.7 


8.34 


52 


10.4 


11. ,55 


13. 


13.88 


14.86 


16. 


17.32 


25J 


5.1 


5.66 


0.38 


6.8 


7.29 


7.85 


8.5 


.52^ 


10.5 


11.66 


13.13 


14. 


15. 


16.16 


17.5 


26 


5.2 


5.78 


6.5 


6.93 


7.43 


8. 


8.67 


.53 


10.0 


11.78 


13.25 


14.13 


15.15 


16.32 


17.67 


26J 


5^3 


5.89 


6.(!3 


7.07 


7. .57 


8.1(5 


8.84 


531 


10.7 


11.89 


13.38 


14.26 


15.29 


16.47 


17.84 


27 


5.4 


6. 


6.75 




7 72 


8.32 


9. 


.54' 


10.8 


12. 


13.5 


14.4 


15.43 


16.62 


18. 


27' 


5.5 


6.11 


6.88 


7!.'S4 


7^86 


8.47 


9.17 


544 


10.9 


12.12 


14. ,52 


14..52 


15..57 


16.76 


18.16 


28^ 


5.6 


6.22 


7. 


7.47 


8. 


8.63 


9.34 


55 


11. 


12.23 


14.66 


14.66 


15.72 


16.93 


18.33 


28^ 


5.7 


6.33 


7.13 


7.6 


8.15 


8.77 


9.5 


554 


11.1 


12.34 


14.8 


14.8 


15.86 


17.09 


18.5 


29 


5.8 


6.44 


7.25 


7.73 


8.29 


8.92 


9.66 


56 


11.2 


12.45 


14.93 


14.93 


16. 


17.23 


18.67 


291 


5.9 


6.55 


7.38 


7.88 


8.43 


9.08 


9.84 


.561 


11.3 


12.,56 


15.06 


15.06 


16.15 


17.4 


18.83 


30' 


(■>. 


6.66 


7 5 


8. 


8..57 


9.24 


10. 


57 


11.4 


12.67 


15.20 


15.2 


16.29 


17. .55 


19. 


30^ 


6.1 


6.78 


7!63 


8.13 


8.72 


9.39 


10.17 


574 


11.5 


12.78 


15.33 


15.33 


16.44 


17.7 


19.16 


31 


6.2 


6.89 


7.75 


8.26 


8.86 


9.54 


10. .34 


58 


11.6 


12.89 


15.46 


15.46 


16.57 


17.85 


19. .33 


311 


6.3 


7. 


7.88 


8.4 


9. 


9.7 


10.5 


.581 


11.7 


3. ■ 


15.6 


15.6 


16.72 


18. 


19.5 


32" 


6.4 


7.11 


8. 


8..">:; 


9.15 


9.S5 


10.67 


59' 


11.8 


3.11 


15.73 


15.73 


16.,S6 


18.15 


19.67 


^321 


6.5 


7.22 


.S.13 


S.liC 


9.29 


10. 


10. .S3 


.591 


11.9 


3.22 


15.86 


15..8(; 


7. 


18.3 119.83 



Note: 



-If house is iM) ft. or over use half the width and double the amount. 
Copyright 1901 by n Mark Dean, Boston, Mass. 



RADIATING SURFACE OF PIPES. 

To ascertain the luniibcr cif s(niaie feet of ra<liation in any jiivcii iiiiinl»cr of lineal feet 
of pipe, lo()l< inidiT si/.e of pii>(' as nivcn at lop of jiani' and opjiositi' Icnjitli (if ]i\n- j;iveu 
on left hand side of jiafJic: tlie innnber found will l)e the nnnilxT of s(inaie feet of radiation in 
the pipe. On all lengths over one foot, fractions less than tentlis are added to or dropped 
and all fractions less than one are added to or dropped on lengths over 61 feet. 



■&-S- 


SIZE OF PIPE. 




4 


1 


u 


li 


2 


3. 


3 


H 


4 


4^ 


5 


6 


7 


8 


9 


10 


11 


12 


1 


.275 


.346 


.434 


.494 


.622 


.753 


.916 


1.055 


1.175 


1.309 


1.455 


1.739 


1.996 


2.257 


2.519 


2.816 


3.14 


3.344 


"^ 


.5 


^^ 


"^ 


1. 


1.2 


Ts 


Tl 


2.1 


2.5 


2.6 


2.9 


3.5 


4. 


4.5 


5. 


5.6 


6.3 


6.7 


3 


.8 


l. 


1.3 


1.5 


1.9. 


2.3 


2.7 


3.2 


3.5 


3.9 


4.4 


5.2 


6. 


6.8 


7.6 


8.5 


9.4 


10. 


4 


1.1 


1.4 


1.7 


2. 


2.5 


3. 


3.6 


4.2 


4.7 


5.2 


5.8 


7. 


8. 


9. 


10. 


11.2 


12. (i 


13.4 


5 


1.4 


1.7 


2.2 


2^4 


3.1 


3.8 


4.6 


5.3 


5.8 


6.5 


7.3 


8.7 


10. 


11.3 


12.6 


14.1 


15.7 


16.7 


6 


1.6 


2.1 


2^6 


2.9 


3.7 


4.5 


5.5 


6.3 


7. 


7.8 


8.7 


10.5 


12. 


13.5 


15.1 


16.9 


18.8 


20. 


7 


1.9 


2.4 


3. 


3.4 


4.4 


5.3 


6.4 


7.4 


8.2 


9.1 


10.2 


12.1 


14. 


15.8 


17.6 


19.7 


22. 


23.4 


8 


2.2 


2.8 


3.5 


3.9 


5. 


6. 


7.3 


8.4 


9.4 


10.4 


11.6 


13.9 


16. 


18. 


20.2 


22.5 


25.1 


26.7 


9 


2.5 


3.1 


3.9 


4.4 


5.0 


6.8 


8.2 


9.5 


10.6 


11.7 


13.1 


15.7 


18. 


20.3 


22.6 


25.3 


28.3 


30.1 


10 


2.7 


3.5 


4.3 


4.9 


6.2 


7.5 


9.1 


10.5 


11.8 


13.1 


14.6 


17.4 


20. 


22.6 


•25.2 


28.2 


31.4 


33.4 


11 


3. 


3.8 


4.8 


5.4 


6.8 


8.3 


10. 


11.6 


13. 


14.4 


16. 


19.1 


22. 


24.9 


27.7 


31. 


34.5 


36.8 


12 


3.3 


4.1 


5.2 


5.9 


7.5 


9. 


11. 


12.6 


14.1 


15.7 


17.4 


20.9 


24. 


27.1 


30.2 


33.8 


.37.7 


40.1 


13 


3.(! 


4.5 


5.6 


6.4 


8.1 


9.8 


11.9 


13.7 


15.3 


17. 


18.9 


22.6 


26. 


29.4 


32.8 


36.6 


40.8 


43.5 


14 


3.8 


4.8 


6.1 


6.9 


8.7 


10.5 


12.8 


14.7 


16.5 


18.3 


20.3 


24.3 


28. 


31.6 


35.3 


39.4 


44. 


46.9 


15 


4.1 


5.2 


6.5 


7.4 


9.3 


11.3 


13.7 


15.8 


17.6 


19.6 


21.8 


26.1 


30. 


33.9 


37.7 


42.2 


47.1 


50.1 


16 


4.4 


5.5 


6.9 


7.9 


10. 


12. 


14.6 


16.9 


18.8 


20.9 


23.2 


27.8 


32. 


36.1 


40.3 


45. 


50.2 


53.5 


17 


4.7 


5.9 


7.4 


8.4 


10.6 


12.8 


15.5 


17.9 


20. 


22.2 


24.8 


29.5 


34. 


38.4 


42.8 


47.9 


.53.4 


57 


18 


5. 


6.2 


7.8 


8.9 


11.2 


13.5 


16.5 


19. 


21.2 


23.5 


26.2 


31.3 


36. 


40.6 


45.4 


.50.8 


.5(1.5 


60.2 


19 


.5.2 


6.6 


8.3 


9.4 


11.8 


14.3 


17.4 


20. 


22.3 


24.9 


27.6 


.33.1 


.38. 


42.9 


47.9 


.53.5 


.59.7 


6: '..6 


20 


5.5 


0.9 


8.7 


9.9 


12.5 


15. 


18.3 


21.1 


23.5 


26.1 


29.1 


34.8 


40. 


45.2 


50.2 


.56.4 


62.8 


67. 


21 


5.8 


7.3 


9.1 


10.4 


13. 


15.8 


19.2 


22.1 


24.7 


27.5 


30.5 


36.5 


42. 


47.4 


52.8 


59.1 


66. 


70.2 


22 


6. 


7.6 


9.6 


10.9 


13.7 


16.5 


20.2 


23.2 


25.9 


28.8 


32. 


38.3 


44. 


49.7 


55.4 


62. 


69.1 


73.5 


23 


6.3 


8. 


10. 


11.3 


14.3 


17.3 21.1 


24.3 


27. 


30.1 


33.5 


40. 


46. 


52. 


58. 


64.9 


72.3 


77. 


24 


6.6 


8.3 


10.4 


11.9 


14.9 


18. |22. 


25.3 


28.2 


31.4 


34.9 


41.7 


48. 


54.2 


60.4 


67.6 


75.4 


80.3 


25 


6.9 


8.6 


10.9! 12.3 


15.6 


18.8 22.9 


26.3 


29.3 


32.7 


36.3 


43.5 


50. 


56.4 


63. 


70.4 


78.5 


83.6 


26 


7.2 


9. 


11.3J12.8 


16.2 


19.5 


23.8 


27.4 


30.5 


34. 


37.8 


45.2 


52. 


58.6 


65.4 


73.2 


81.6 


87. 


27 


7.4 


9.4 


11.7 


13.3 


16.8 


20.3 


24.7 


28.5 


31.7 


a5.3 


.39.3 


47. 


54. 


61. 


68. 


76. 


84.8 


90.3 


28 


7.7 


9.7 


12.2 


13.8 


17.4 


21 


25.6 


29.5 


32.9 


36.6 


40.7 


48.7 


56. 


63.2 


70.5 


78.8 


87.9 


93.6 


29 


s! 


10. 


12.6 


14.3 


18. 


21.8 


26.6 


30.6 


34.1 


37.9 


42.2 


.50.4 


58. 


65.5 


73. 


81.8 


91. 


97. 


30 


8.3 


10.4 


13. 


14.8 


18.7 


22.5 


27.5 


31.6 


35.3 


39.2 


43.6 


52.1 


60. 


67.8 


75.5 


84.4 


94.2 


100.4 


31 


8.5 


10.7 


13.5 


15.3 


19.3 


23.3 


28.4 


32.7 


36.4 


40.5 


45.1 


53.9 


62. 


70. 


78. 


87.2 


97.4 


103.7 


32 


8.8 


11.1 


13.9 


15.8 


19.9 


24.1 


29.3 


33.7 


.37.6 


41.8 


46.5 


55.6 


64. 


74. 


80.6 


90. 


100.5 


107. 


33 


9.1 


11.4 


14.3 


16.3 


20.5 


24.8 


130.2 


34.8 


38.8 


43.2 


48. 


.57.4 


66. 


74.4 


83.1 


93. 


l(t:',.(; 


110.3 


34 


9.4 


11.7 


14.7,16.8 


21.2 


25.6 


31.1 


3i-,.8 


40. 


44.5 


49.5 


59.1 


68. 


76.7 


85.6 


95. S 


KIC.S 


113.6 


35 


9.6 


12.1 


15.2 17.3 


21.8 


26.3 


32. 


36.9 


41.1 


45.8 


.50.9 


60.8 


70. 


79. 


88.1 


9S.."i 


110. 


117. 


36 


9.9 


12.5 


15.6 17.8 


22.4 


27. 


33. 


38. 


42.3 


47.1 


52.4 


62.0 


72. 


81.3 


90.7 


101.3 


113. 


120.3 


37 


10.2 


12.8 


16.1 18.3 


23. 


27.8 


.33.9 


39. 


43.5 


48.4 


.53.8 


64.3 


74. 


83.6 


93.2 


104.2 


116.2 


123.7 


38 


10.5 


13.2 


Ki.r, is.s 


•_>:; 7 


28.5 


34.8 


40.1 


44.6 


49.7 


55.2 


GCk 


76. 


85.9 


95.7 


107. 


119.3 


127.2 


39 


10.7 


13.5 


l(;.;i I'.i.:; 


■J4.:'. 


29.3 


35.7 


41.1 


45.8 


51.1 


.56.8 


67.8 


78. 


88. 


98.3 


109.8 


122.5 


130.5 


40 


U. 


13.8 


17.4,l'.i.s 


24.9 !:».l 


3(5.6 


42.2 


47. 


52.3 


58.2 


69.5 


80. 


90.2 


100.7 


112.6 


125.6 


133.8 


41 


11.3 


14.2 


17.S 20.5 


25.5 


30.8 


37.6 


43.2 


48.2 


.53.6 


59.6 


71.3 


82. 


92.5 


103.3 


115.5 


128.8 


137.2 


42 


11.6 


14.5 


1S.2 20.8 


26.1 


31.6 


38.5 


44.3 


49.4 


.55. 


61.1 


73. 


84. 


94.9 


105.8 


118.3 


1,31.9 


140.5 


43 


ll.S 


I4.:i 


IS. 7 ■J1.3 


2(i.8 


32.3 


39.4 


45.3 


.50.6 


56.3 


62.5 


74.8 


86. 


97. 


108.2 


121. 


135. 


143.8 


44 


12.1 


i.-..-_' 


i;m -Jl.S 


27.4 


33.1 


40.3 


46.4 


51.7 


57.6 


64. 


76.5 


88. 


99.5 


110.8 


124. 


138.2 


147.2 


45 


12.4 


i.-..i; 


111..-. •2■^A 


28. 


33.8 


41.2 


47.4 


.52.9 


58.9 


65.5 


78.2 


90. 


101.6 


113.3 


126.7 


141.3 


1.50.5 


46 


12.7 


15.9 


20. 22.7 


28.6 


34.6 


42.2 


48.5 


54. 


60.2 


67. 


80. 


92. 


103.8 


115.8 


129.5 


144.3 


154. 


47 


12.9 


16.3 


20.4 23.2 


29.2 


.35.3 


43. 


49.6 


.55.2 


61.5 


68.4 


81.7 


94. 


100. 


118.3 


1.32.3 


147.5 


1.57.2 


48 


13.2 


ic.r, 


L'o.s •j:i.7 


2!l!9 


36.1 


43.9 


50.6 


56.4 


62.8 


69.9 


83.5 


96. 


108.4 


1'20.9 


135.2 


150.7 


160.6 


49 


13..^. 


17. 




30.5 


36.8 


44.8 


51.7 


57.6 


64.1 


71.2 


85.1 


98. 


lio.r. 


1 ■_':'.. 4 


138. 


153.9 


164. 


50 


13.8 


17.:; 


•J1.7 Jl." 


31.1 


37.6 


45.8 


52.8 


.58.7 


65.4 


72.8 


87. . 


KKI. 


112.8 


I'.'O. 


140.8 


157. 


167.2 


51 


14. 


17.6 


22.1 25.2 


31.7 


38.3 


46.7 


53.8 


60. 


66.8 


74.2 


88.6 


102. 


115. 


1-28.5 


143.5 


160.1 


170.5 


52 


14.3 


18. 


22.6 25.7 


.32.3 


.39.1 


47.6 


.54.8 


61.2 


68. 


75.6 


90.4 


104. 


117.4 


131. 


146.4 


163.2 


174. 


53 


14.6 


18.3 


23. 26.2 


33. 


39.8 


48.5 


.55.9 


62.4 


69.4 


77.1 


92.lil06. 


119.6 


133.5 


149.2 


1(;6.5 


177.2 


54 


14.9 


18.7 


23.4 26.7 


33.6 


40.6 


49.5 


57. 


63.5 


70.0 


78.6 


94. 


108. 


121.9 


136. 


1.52. 


l(i9.(; 


180.6 


55 


15.1 


19. 


23.9127.2 


:i4.2 


41.3 


.50.4 


58. 


(i4.7 


72. 


80. 


95.6 


110. 


124.1 


138.5 


1.55. 


172.7 


1S4. 


56 


15.4 


19.4 


24.3 


27.7 


34.9 


42.2 


51.3 


59.1 


65.8 


73.4 


81.5 


97.4 


112. 


126.4 


141. 


157.5 


175.9 


187.2 


57 


15.7 


19.7 


24.7 


28.2 


35.4 


43; 


52.2 


60.1 


67. 


74.5 


83. 


99. 


113.8 


128.5 


143.2 


160.3 


179. 


190.5 


58 


16. 


I'll.! 


■jr..! 2S.7 


36. 


43.7 


.53.2 


61.2 


68.2 


75.9 


84.4 


KMI.s: 115.9 


131. 


146. 


163.3 


182.1 


193.7 


59 


16.2 


•JO. 4 


•_'."..(; •-".1.2 


36.8 


44.5 


54. 


62.2 


69.3 


77.2 


85. S 


102.5 lis. 


133. 


148.3 


166. 


185.1 


197.3 


60 


16.5 


■jo.s 


•_>(•,. 1 ■_",). 7 


37.3 


45.1 


55. 


63.3 


70.5 


78.5 


87.3 


104.2 119.8 


135.4 


151. 


169. 


188.4 


201, 


61 


16.S 


21.1 


'26!4'::!0!l 


37.9 


46. 1.55.9 


64.3 


71.7 


79.8 


88.7 i 105.9 121.9 


1.37.711.53.5 


171.5 


191.5 


203.8 



Copyright 1901 by 



12 



Mark Dean, Boston, Mass. 



RADIATING SURFACE OF PIPES.— Continued. 







, 








SIZE 


OF 


PIPE. 
















3 
4 

.275 


1 

• 346 


.434 


.494 


2 

.622 


01- 
.753 


3 

■ 916 


3i 


4 


4.1 


5 


6 


7 


8 


9 


10 


11 


12 




1 055 


1.175 


1.309 


1.455 


1.739 


1 996 


2.257 


2., 519 


2.816 


3.14 


3.344 


nif 


17 


"21 


~27 


~^ 


~38 


Tr> 


^56 


65 


72 


81 


90 


107 


124 


140 


156 


174 


194 


207 


63 


17 


21 


27 


31 


39 


47 


57 


66 


74 


82 


91 


109 


125 


142 


1,58 


177 


197 


211 


64 


17 


22 


27 


31 


39 


48 


58 


6? 


75 


83 


93 


111 


127 


144 


101 


180 


201 


214 


65 


17 


22 


28 


32 


40 


4f 


59 


68 


76 


85 


94 


113 


129 


146 


163 


183 


204 


217 


66 


18 


22 


28 


32 


41 


49 


60 


69 


77 


86 


96 


114 


131 


149 


166 


185 


207 


220 


67 


18 


23 


29 


33 


41 


50 


61 


70 


78 


87 


97 


116 


133 


151 


168 


188 


210 


224 


68 


18 


23 


29 


33 


42 


51 


62 


71 


80 


89 


99 


118 


135 


1,53 


171 


191 


213 


227 


69 


19 


23 


29 


34 


' 42 


52 


63 


72 


81 


90 


100 


120 


138 


155 


173 


194 


216 


230 


70 


19 


24 


30 


34 


43 


52 


64 


74 


82 


91 


101 


121 


139 


158 


176 


197 


220 


234 


71 


19 


24 


30 


35 


44 


53 


65 


75 


83 


93 


103 


123 


141 


160 


178 


199 


222 


237 


72 


19 


: 24 


31 


35 


44 


54 


66 


76 


84 


94 


104 


125 


143 


162 


181 


202 


226 


240 


73 


20 


25 


31 


36 


45 


55 


67 


77 


86 


95 


106 


127 


146 


164 


184 


205 


229 


244 


74 


20 


25 


32 


36 


46 


55 


67 


78 


87 


96 


107 


128 


148 


167 


186 


208 


232 


248 


75 


20 


26 


32 


37 


46 


56 


68 


79 


88 


98 


109 


130 


1.50 


169 


189 


211 


2.35 


250 


76 


20 


26 


33 


37 


47 


57 


69 


80 


89 


99 


110 


132 


152 


171 


191 


214 


238 


254 


77 


21 


26 


33 


38 


47 


58 


70 


81 


90 


100 


112 


134 


153 


173 


193 


216 


242 


257 


78 


21 


27 


33 


38 


48 


58 


71 


82 


91 


102 


113 


135 


1.55 


176 


196 


219 


24,5 


260 


79 


21 


27 


34 


39 


49 


59 


72 


83 


93 


103 


115 


137 


1,58 


178 


198 


222 


248 


264 


80 


22 


27 


34 


39 


49 


60 


73 


84 


94 


104 


116 


139 


159 


180 


201 


225 


251 


268 


81 


22 


28 


35 


40 


50 


61 


74 


85 


95 


106 


117 


140 


161 


182 


204 


228 


254 


271 


'82 


22 


28 


35 


40 


51 


61 


75 


86 


0(i 


107 


119 


142 


163 


185 


206 


2,30 


257 


274 


83 


22 


28 


36 


41 


51 


(i2 


76 


87 


97 


108 


120 


144 


165 


187 


209 


233 


260 


278 


84 


23 


29 


36 


41 


52 


63 


77 


88 


98 


110 


122 


146 


167 


189 


211 


236 


264 


281 


85 


23 


29 


36 


42 


52 


64 


78 


89 


100 


111 


124 


147 


169 


191 


213 


239 


266 


284 


86 


23 


29 


37 


42 


53 


64 


79 


90 


101 


112 


125 


149 


172 


194 


216 


242 


270 


288 


87 


23 


30 


37 


43 


54 


65 


79 


91 


102 


113 


126 


151 


173 


196 


218 


244 


273 


290 


88 


24 


30 


38 


43 


54 


(i6 


80 


92 


103 


115 


128 


153 


175 


198 


221 


247 


276 


294 


89 


24 


30 


38 


44 


55 


67 


81 


94 


104 


116 


129 


155 


177 


200 


224 


250 


280 


298 


90 


24 


31 


39 


44 


56 


67 


82 


95 


105 


117 


131 


156 


180 


203 


226 


253 


282 


300 


91 


25 


31 


39 


45 


56 


68 


83 


90 


107 


119 


132 


158 


181 


205 


229 


256 


286 


304 


92 


25 


31 


39 


45 


57 


,69 


84 


97 


108 


120 


133 


160 


183 


207 


231 


259 


289 


308 


93 


25 


32 


40 


46 


57 


70 


85 


98 


109 


121 


135 


161 


185 


209 


234 


261 


292 


311 


94 


25 


32 


40 


46 


58 


70 


86 


99 


110 


122 


136 


163 


187 


212 


236 


264 


295 


314 


95 


26 


32 


41 


47 


59 


71 


87 


100 


111 


124 


138 


165 


189 


214 


239 


267 


298 


318 


96 


26 


33 


41 


47 


59 


72 


88 


101 


112 


125 


139 


166 


191 


216 


241 


270 


301 


321 


97 


26 


33 


42 


48 


61 


73 


89 


102 


114 


126 


141 


168 


193 


2i8 


244 


273 


304 


324 


98 


27 


33 


42 


48 


61 


77 


89 


103 


115 


128 


142 


170 


195 


221 


246 


276 


308 


328 


99 


27 


34 


42 


48 


61 


74 


90 


104 


116 


129 


144 


172 


197 


223 


249 


278 


310 


331 


100 


27 


34 


43 


49 


62 


75 


91 


105 


117 


131 


145 


174 


199 


225 


251 


281 


314 


334 


110 


30 


38 


47 


-A 


68 


83 


101 


116 


129 


144 


160 


191 


220 


248 


276 


310 


346 


368 


120 


33 


41 


52 


59 


74 


90 


110 


126 


141 


157 


174 


208 


240 


270 


302 


337 


397 


401 


130 


35 


45 


56 


64 


80 


98 


119 


137 


153 


170 


189 


226 


2,59 


293 


327 


365 


408 


435 


140 


38 


48 


(50 


69 


87 


105 


128 


147 


164 


183 


2(M 


243 


279 


315 


352 


394 


440 


468 


150 


41 


52 


65 


74 


93 


113 


137 


158 


176 


196 


218 


261 


299 


338 


377 


422 


471 


502 


160 


44 


55 


69 


79 


99 


120 


146 


168 


188 


209 


233 


278 


320 


361 


403 


450 


503 


535 


170 


46 


58 


73 


84 


105 


128 


156 


179 


200 


222 


247 


295 


339 


383 


427 


478 


533 


568 


180 


49 


62 


78 


81) 


111' 


l.T, 


1(>5 


189 


211 


235 


262 


313 


3.59 


406 


453 


506 


565 


602 


190 


52 


65 


82 


94 


ll.s 


143 


174 


200 


223 


249 


270 


330 


380 


428 


479 


535 


596 


636 


200 


55 


69 


86 


99 


124 


150 


183 


211 


235 


261 


291 


348 


399 


451 


503 


563 


628 


670 


210 


57 


72 


91 


103 


130 


158 


192 


221 


247 


274 


305 


365 


^19 


474 


528 


591 


659 


702 


220 


60 


76 


95 


108 


136 


165 


201 


232 


258 


288 


320 


382 


440 


496 


553 


618 


690 


7,36 


230 


63 


79 


99 


li:r 


143 


173 


211 


242 


270 


300 


334 


400 


460 


519 


579 


648 


722 


770 


240 


(!(•) 


83 


104 


118 


149 


181 


220 


253 


282 


314 


349 


417 


479 


.541 


604 


675 


753 


803 


350 


68 


86 


108 


123 


155 


188 


229 


263 


294 


327 


364 


434 


499 


.563 


629 


704 


785 


836 


260 


71 


90 


112 


128 


161 


195 


238 


274 


306 


340 


378 


452 


519 


586 


654 


732 


816 


870 


270 


74 


93 


117 


133 


168 


203 


247 


285 


317 


353 


393 


469 


540 


609 


680 


760 


848 


904 


280 


77 


96 


121 


138 


174 


211 


257 


295 


329 


366 


407 


486 


.5,59 


632 


705 


788 


8,H0 


936 


290 


79 


100 


125 


143 


180 


218 


266 


306 


341 


379 


422 


504 


579 


654 


730 


816 


910 


970 


300 


82 


103 


130 


148 


186 


226 


274 


316 


352 


392 


436 


521 


,599 


677 


754 


844 


942 


1003 


310 


85 


107 


134 


153 1 


193 


233 


284 


327 


364 


405 


451 


539 


619 


699 


780 


872 


973 


1036 


320 


88 


111 


138 


158' 


190 


241 


293 


337 


376 


418 


465 


556 


639 


722 


806 


900 


1005 


1070 


330 


90 


114 


143 


k;:! 


■JO.". 


24S 


303 


348 


388 


432 


480 


573 


6,59 


744 


830 


929 


1036 


1103 


340 


93 


117 


147 


ICS 


211 


•ifiC. 


312 


358 


400 


444 


494 


.590 


679 


766 


855 


957 


1068 


1137 


350 


96 


121 


151 


17:; 


■J 17 


■j( ;: ; 


321 


369 


411 


458 


510 


608 


700 


790 


880 


986 


1098 


1170 


360 


99 


124 


156 


177 


■JL':; 


271 


330 


380 


423 


471 


.524 


625 i 


7191 


812 1 


906 


1013 


1130 


1204 



Copyright 1901 by 



Mark Dean, Boston, Mass. 



RADIATING SURFACE OF PIPES — Continued. 



■£ 0) 




SIZE 


OF PIPE. 


cfl. 
<u *. 
-J o 


3. 

4 


1 


ii 


il 


2 


li 


3 


3^ 


4 


4.1 


5 


6 


7 


8 


9 


10 11 


12 




/275 

lol 


.:',4r,' 
l-.'s 


.4:;4 


.494 
1.S2 


. ( 122 
•J. id 


. 753 

279 




1.0.55 


1.175 


1..309 


1.4.55 


1.7W 
(H3 


1.996 


2.257 


2.. 519 


2.8161 3.14 
1042 1161 


3.344 


^Mi 


390 


435 


484 


OoS 


7a9 


835 


932 


1238 


380 


105 


131 


i(;5 


18S 


2:'i6 


2S(; 


349 


400 


447 


497 


552 


660 


7.59 


8.58 


•956 


1070 1 1193 


1273 


390 


107 


135 


1()9 


192 


242 


294 


358 


412 


458 


510 


567 


678 


779 


880 


9S2 


1(196 1224 


1.505 


4001 


110 


138 


173 


197 


248 


301 


367 


422 


470 


,523 


582 


695 


799 


901 


10116 


1125 12.57 


13:38 


410 


112 


141 


178 


202 


255 


308 


375 


432 


482 


536 


596 


713 


819 


926 


1032 


115:! 1287 


1370 


420 


115 


145 


182 


207 


261 


310 


385 


443 


494 


549 


611 


730 


839 


948 


10,56 


1182 


1318 


1405 


430 


118 


148 


186 


212 


267 


323 


394 


4.53 


.505 


562 


625 


747 


859 


970 


1082 


1210 


13.50 


1438 


440 


121 


152 


v.n 


217 


274 


:»1 


403 


iVA 


517 


576 


640 


764 


879 


993 


1107 


1238 


1:580 


1472 


450 


123 


155 


195 


222 


2.S0 


339 


412 


475 


529 


589 


654 


782 


899 


1015 


11:52 


1267 


141:5 


\-m 


460 


126 


159 


199 


227 


286 


346 


421 


485 


540 


602 


669 


8(K) 


919 


1038 


1159 


1295 


1445 


l-)40 


470 


129 


162 


204 


232 


292 


353 


430 


496 


552 


615 


684 


817 


939 


1060 


1183 


1322 


147(> 


1572 


480 


132 


166 


20S 




298 


361 


440 


50(5 


,564 


628 


698 


834 


959 


108:5 


1209 


1:350 


1.507 


1606 


490 


134 


169 


212 


242 


:;ir. 


3(;s 


449 


.51(! 


570 


(HI 


712 


850 


979 


1106 


12:5:! 


1379 


1.5:59 


16.58 


500 


137 


173 


217 


247 


311 


37(! 


458 


527 


.588 


6.54 


728 


8.59 


999 


112.S 


125,S 


1407 


1.570 


1672 


510 


140 


176 


221 


252 


317 


383 


467 


538 


599 


667 


742 


886 


1018 


11.50 


1284 


14:55 


1(502 


1707 


520 


143 


180 


225 


257 


323 


391 


476 


.^8 


611 


G80 


756 


904 


10.38 


1173 


1310 


14&1 


1632 


1740 


53(' 


145 


183 


230 


2()2 


329 


.398 


485 


5.59 


623 


694 


771 


921 


10.58 


1195 


1:3:33 


1492 1664 


1773 


540 


148 


1H7 


2.!4 


267 


3:i6 


4(h; 


495 


570 


634 


706 


786 


939 


1078 


1218 


13(!0 


1.520 1695 


l.sd7 


550 


151 


190 




271 


342 


414 


504 


.580 


tU6 


720 


80O 


956 


1098 


1240 


1:584 


1.54.S 


1727 


184(t 


560 


154 


193 


243 


276 


348 


421 


513 


591 


658 


732 


815 


973 


1118 


1264 


1410 


1577 


17.59 


1.S74 


570 


156 


197 


247 


281 


3M 


429 


522 


601 


660 


746 


829 


991 


11.38 


128(> 


14:35 


l(i05 


1790 


1906 


580 


159 


201 




286 


361 


436 


531 


612 


681 


759 


844 


1008 


11.58 


1309 


1460 


v:.;:'. 


1821 


1940 


590 


162 


204 


256 


291 


367 


443 


540 


622 


693 


772 


859 


1025 


117.S 


13:!0 


14.S5 11160 


lS.-,2 


1972 


60(« 


165 


207 


260 


296 


373 


451 


550 


633 


705 


784 


873 


1042 


119.S 


1:3.53 


1510 1690 


l.s.'^4 


2ddS 


(!10 


177 


211 


264 


:m)1 


379 


459 


559 


643 


717 


798 


887 


1060 


1228 


1376 


15:35 


1717 


1916 


2040 


620 


170 


214 


2()9 


306 


385 


466 


568 


6.54 


738 


811 


902 


1078 


1238 


1400 


1.560 


1745 


1947 


2075 


630 


173 


21S 


273 


311 


392 


474 


.577 


664 


740 


824 


916 


1095 


12.58 


1422 


1.5.>^(> 1774 


197.S 2108 


640 


176 


222 




316 


39.S 


4«2 


.586 


675 


752 


838 


931 


1112 


1278 


1444 


l(;i(l ISdd' 2d09i 214d 


650 


179 


225 


282 


321 


404 


489 


.595 


()86 


764 


8.50 


946 


1129 


1298 


1467 


l(;:;6 is:;o 


2040 


2174 


660 


181 


228 


286 


326 


410 


496 


604 


696 


775 


863 


960 


1147 


1318 


1490 


1660 


1857 


2070 


2205 


670 


184 


231 


2iX) 


330 


417 


504 


614 


707 


787 


877 


975 


1164 


1338 


1510 


1686 


1885 


2103 


2240 


680 


187 


235 


295 


:?3(; 


423 


511 


622 


716 


800 


890 


990 


1180 


13.58 


1534 


1710 


1912 


2135 


2270 


690 


189 


23S 


299 


.•ui 


429 


519 


632 


728 


811 


902 


1004 


1199 


1378 


1557 


1738 


1942 


2168 


2:508 


700 


192 


242 


:«)4 


345 


4:;5 


526 


641 


738 


822 


916 


1018 


1217 


1398 


1.580 


1761 


1970 


2198 


2340 


710 


195 


246 


308 


350 


441 


534 


650 


749 


834 


929 


1033 


12;h 


1418 


1604 


1788 


2000 


2230 


2375 


720 


198 


249 


312 


355 


448 


541 


660 


760 


846 


942 


1047 


1251 


1438 


1625 


1812 


2026 


2260 


2409 


730 


201 


2."'J 


:;i7 


:ic,o 


VA 


r>t9 


669 


770 


858 


9.55 


1062 


1269 


1458 


1649 


is:!8! 20.55 


2298 


2442 


740 -'i-'' 


■j.'.i ; 


:;•_■! 


:;i;."'i 


4i')() 


556 


678 


780 


870 


968 


1076 


12S6 


147S 


1670 


ls(;:5 2d.s:', 


2:52:5 


247S 


750: -i"i 


-'>'. 1 




:;7o 


466 


.564 


686 


791 


881 


982 


1091 


1303 


149.S 


1692 


isss 2110 


2:555 


2510 


760 


209 


263 


330 


375 


473 


572 


696 


802 


893 


994 


1106 


1321 


1518 


1715 


1914 


2140 


2385 


2.545 


770 


211 


266 


3.U 


380 


479 


579 


705 


812 


905 


1007 


1120 


1338 


1.5:38 


1738 


1938 


21(58 


2418 


2578 


780 


214 


270 


338 


385 


485 


,586 


714 


822 


917 


1020 


11:55 


1355 


1.5.58 


1760 


1963! 2195! 24.50 


2(!10 


790 


217 


273 


343 


390 


491 


594 


724 


833 


92.S 


W.V.; 


1149 


i:'.72 


157.S 


17.S2 


i;iss 2222 


24Sd; 2642 


800 


220 


276 


Ml 


395 


497 


602 


732 


844 


940 


1047 


ik;:; 


lIV.IO 


1598 


1805 


2012 22.50 


2511 


2(17K 


810 




280 


351 


400 


504 


610 


741 


8.54 


951 


lOW) 


1179 


1409 


1618 


1829 


2040] 2280 


2543 


2710 


820 


225 


283 


351) 


405 


510 


618 


750 


865 


964 


1072 


1193 


1425 


1638 


1850 


20(>1 2:308 


2575 


2742 


830 


228 


287 


3I!0 


410 


516 


624 


760 


876 


97(> 


1086 


1208 


1442 


l(i.58 


1872 


2090 2:5:55 


2605 


2775 


840 


231 


290 


lifA 41." 


522 


632 


770 


88(; 


9S,S 


109s 


1222 


1460 


167S 


1,S95 


2115 2:i65 


26:59 


2Sld 


850 


233 


294 


369, 421 


528 


640 


778 


89(i 


IIKMI 


1112 


1236 


1477 


l(i9S 


191S 


214(1 2:!92 2(;69 


2S42 


860 


236 


297 


373 


424 


535 


647 


788 


907 


1011 


1125 


1251 


1495 


1718 


1940 


21(H 


2420, 27(K) 


2,H75 


87( 


239 


301 


377 


429 


541 


654 


797 


918 


1022 


1138 


1265 


1512 


1738 


1962 


2190 


24.50 2730 


2910 


881 


242 


304 


3Sl' 434' 547 


662 


806 


928 


1034 


11.52 


12S0 


1.530 


17.58 


19S5 


221.- 


247(> 27(52 


2945 


89( 


244 


30!> 


■.isa 4:!9 •'•>^ 


670 


815 


939 


104.- 


1164 


129.- 


1.547 


177S 


2(1119 


2240 2.-.d5 279." 


2978 


900 


247 


311 


3901 444 5(1(_ 


677 


824 


9.51 


1057 


1177 


i:>l( 


l.-.li5 


179,s 


20: i( 


2267 2.5:55, 2S27 


.-5010 


910 


250 


314 


395 


44'j 5661 684 


833 


960 


1069 


1190 


1323 


1580 


1818 


2053 


229(J 2560 


2858 


.3045 


920 


253 


318 


399 


454 572 092 


843 


970 


1081 


1203 


1339 


1600 


1838 


2077 


2316 2.590 


2890 :5086 


930 


255 


322 


40:',' 459' 57s ■ 700' 852 


981 


lOil.1 


1217 


13.53 


161t 


18.5S 


210( 


2340' 262( 


2920 :5110 


940 


258 


325 


4()S 41 ;4 5S4 7(t(i SCd 


99'_ 


1104 


I2:i( 


\:Mu 


1634 


1S7.S 


212( 


2:5(16 264.- 


2951: 3145 


95( 


261 


328 


412 4l'.9i 591 714 S70 


1001 


UK 


1243 


13S1 


1651 


l.Silh 


2144 


2:591 


267- 


29,S2' 3180 


96C 


264 


332 


417 


474 


597 


722 879 


101: 


112b 


1251 


139( 


166'. 


191b 


1 2167 


2418 


2701 


3015 


3210 


97( 


267 


335 


421 


47; 


603 


7:30 888 


1024 


1140 


1270 


1411 


1686 


1938 


1 2191 


244C 


2730 


304.'5 


:3245 


980 268 


33fl 


42: 


48.) 


(;oi 


7:!S' 897 


103,4 


1151 


ri.'!'. 


142.'- 


1703 


19.5S 


22 1( 


2468' 2T,5b 


:5077 


:5278 


990 27': 


Ml 


42'.i 4S'.i on; 744 9117 


1(144 


no: 


129.- 


144< 


172( 


197S 


22; V_ 


2492 27S> 


:ilii'.i' :5:5io 


lOOol 27f 


3461 4:U 4'.M C-JL' T.".:; 91 ( 


lll.V 


117: 


i:iO! 


14.->.- 


17:1; 


I'.l'.l.- 




2.-.19 2si(,i :;i4d :5:544 

, . . , ■■ .1 t 



ill one tliousaiul and to the result add the amount given in these tables tor that part ot 
the number less than one thousand. ,, , ^ „ , 

Copyright 1901 by 14. Mark Dean, Boston, Mass. 



FOR CONSERVATORIES A/ND IRREGULAR 
SHAPED HOUSES. 



It sometimes happens that conservatories are of such 
irregular shape as to be inconvenient to estimate by the formulas 
already given, for such as come under this heading I have com- 
puted the tables on the following pages so that, at a glance, the 
amount of glass, or wall surface, in any given space may be 
obtained. 

For explanation of tables see bottom of pages 16 and 17. 

To find the area of a triangle look on following tables under 
an index number, at top of page, equal to one-half the per- 
pendicular line and opposite an index number, at side of page, 
representing the length of base line, the number found will be 
the area. 

For areas of circles see pages 28 to 30. 

Following the tables of glass and wall surface is another 
giving the square feet of radiation necessary at various rates. 
Therefore, after having obtained the glass and wall surface it is 
only necessary to consult these tables to obtain the square feet 
of radiation necessary. 

DIVISORS TO USE FOR DIFFERENT TEMPERATURES. 



STEAM 


HOT WATER 


TEMPERATURE 
DESIRED 


70° 1 650 


00° 


550 


50O 4501400 

6i 1 7| 1 8J 


TEMPERATURE 
DESIRED 


700 


G50 


600 


550 50O 


4.50 1 400 


DIVISR 


5 1 5.4 


5.8 


DIVISOR 


3 


3i 


•H 


3i L4 


4J 5 



Reduce all exposed surface to glass or its equivalent and 
divide by number given under temperature desired, the result 
will be the number of square feet of radiation necessary to main- 
tain that temperature. 

Note : — The divisors given above are for heating good tight 
houses during zero weather. If houses are old, or if they 
leak air, allow additional radiation sufficient to annul the 
extra cooling influence. 

15 



SQUARE FEET OF GLASS OR WALL 

Continued on following 



Feet. 


1 










2 












3 












4 


Inches 


12 


14 


16 


18 


20 


22 


34 


26 


28 


30 


32 


34 


36 


38 


40 


42 


44 


46 


48 


Ft. In. 
















1 1^ 


1 






































14 


IM 


1'4 




































16 


1^4 


I'i 


I'i 


































18 


1'4 


194 


2 


214 
































20 


1?4 


8 


21.4 


2'., 


294 






























22 


19i 


2Ji 


214 


29i 


3 


3^4 




























2 24 


2 


2^ 


294 


3 


3'4 


394 


4 


























2<; 


2Vi 


2'4 


3 


314 


31/2 


4 


414 


434 
























28 


214 


29i 


314 


314 


4 


4M 


m 


5 


51 






















30 


2ii 


3 


3I4 


3^4' 


414 


414 


5 


514 


5% 


6H 




















32 


2?.i 


3 


3;'4 


4 


41., 


5 


554 


594 


6?4 


694 


7 


















34 


2?i 


■dh 


394 


4I4 


4:'4 


514 


594 


6J4 


614 




7H 


8 
















3 36 


3 


3'/„ 


4 


41/, 


5 


514 


6 


614 


7 


7'/2 


8 


8'/2 


9 














38 


314 


39i 


414 


4»4 


514 


594 


6M 


694 


7'4 


8 


8'4 


9 


91.2 


10 












40 


3U 


4 


4ii 


5 


51, 


6 


694 


714 


7% 


814 


9 


914 


10 


1014 


11 










42 


3'., 


4 


494 


51-4 


5='4; 


614 


7 


714 


814 


8% 


9M 


10 


101, 


11 


11% 


1214 








44 


3?; 


4h 


5 


594 


6H 


694 


7^ 


8 


8'4 


9 


9% 


1014 


11 


11% 


12^ 


12% 


1314 






46 


394 


41 i 


5 


5^ 


6'4 


7 


m 


814 


9 


9'2 


lOM 


10% 


111, 


1214 


1294 


131/2 


14 


1494 




4 48 


4 


494 


514 


6 


694 


IH 


8 


8^4 


9H 


10 


10'., 


1114 


12 " 


12% 


1314 


14 


14% 


1514 


16 


51 


4U 


6 


594 


614 






81, 


9I4 


9% 


IOI4 


III4 


12 


13% 


1310 


I4I4 


15 


15' , 


I6I4 


17 


54 


4'o 


51-4 


6 


694 


7!4 


SI4 


9 


9', 


101, 


III4 


12 


12% 


13' , 


I4I4 


15 


15% 


16', 


17I4 


18 


57 


4i!i 


5'i 


6I4 


7J4 


8 


8i'4 


91 


IOI4 


11 


12 


12% 


131, 


n'4 


15 


15% 


16% 


171 2 


I8I4 


19 


5 60 


5 


59ii 


69i 


71/2 


814 


914 


10 


10% 


11% 


1214 


13Vi 


1414 


15 


15% 


16% 


1714 


I8I4 


1914 


20 


64 


5M 


6 14 


V 


8 


9 


9=4 


103^ 


111,, 


121, 


I3I4 


I4I4 


15 


16 


17 


17% 


1894 


191/2 


2014 


21 H 


68 


5^4 


«'2 


■!''4 


81.4 


91, 


1(|1., 


IIU 


I2I4 


l^iU 


I4I4 


15 


16 


17 


18 


19 


19% 


20% 


21% 


22% 


6 72 


6 


7 


8 


9 


10 ' 


11 


12 


13 


1 i 


15 


16 


IT 


IS 


19 


20 


31 


22 


23 


24 


7(1 


6V4 


7'4 


8'/j 


91/2 


101 2 


IIU 


123^ 


1394 


14% 


15% 


17 


18 


19 


20 


21 


22V4 


2314 


2414 


2514 


80 


6?4 


79i 


9 


10 


11 


1214 


13V4 


141/2 


151/2 


1694 


17% 


19 


30 


21 


2214 


23V4 


2414 


251 2 


26% 


7 84 




8I4 


9I4 


101.; 


1194 


12^4 


14 


1514 


I6I4 


1714 


18% 


1994 


21 


22I4 


23I4 


2414 


25% 


2694 


28 


88 


IH, 


8',, 


9-', 


11 


12I4 


lavo 


14^4 


16 


17 


ISI4 


191, 


20-'| 


22 


23I4 


341, 


25 3^; 


27 


28 


2914 


92 


' "'4 


it 


KIVi 


11^4 


12^4 


14 


I5I4 


161, 


18 


19I4 


30' , 


31'i 


33 


31I4 


3."i' , 


36% 


28 


2914 


30% 


8 96 


8 


'-'^4 


io:'4 


12 


1814 


143^ 


16 


17^4 


1«94 


20 


31^4 


22'i 


24 


25 14 


36-'_," 


28 


2914 


3094 


32 


10() 


8M 


994 


11 


1214 


14 


1514 


16% 


18 


1914 


20% 


2214 


2314 


25 


2614 


27% 


2914 


3014 


32 


33>4 


104 


8?4 


10 


111;, 


13 


141/0 


16 


17^4 


18% 


2014 


21% 


za 


24 _" 


26 


2714 


29 


3014 


3194 


3314 


34% 


9 los 


i) 


101 i 


12 


1314 


15 


161 


18 


191., 


31 




24 


251 


17 


3S1 ., 


^0 


311/2 


33 


34I2 


36 


112 


!tVt 


n 


1214 


14 


151 


17 


183i 


30I4 


iV:' 


231.1 


>-'' 


li)^ ., 


3S 


29' l 


31 


32% 


3414 


3594 


3714 


116 


y?4 


iiM 


13 


141/2 


16 


1794 


I9I4 


21 




2II4 


25 '4 


27', 


29 


30% 


3214 


33% 


5514 


37 


38% 


JO I'-iO 


10 


119i 


13V4 


15 


1694 


I814 


20 


2194 


iSXi 


25 


26% 


28V4 


30 


31% 


3354 


35 


36% 


38 


40 


124 


10V4 


12 


13^4 


151.4 


1-^4 


19 


20y 


221-, 


24 


25% 


271-; 


29 V4 


31 


32% 


341/2 


3614 


38 


391/2 


4154 


12K 


10?i 


l-J'o 


14I4 


16 


I7''.i 


191., 


~Ml4 


33 


25 


26% 


28 1 , 


i0l4 


32 


33% 


3514 


371.4 


39 


41 


42% 


11 132 


11 


12 '4 


11^4 


Kilo 


1«^4 


2(|l4 




2:'.'i, 


2.")''| 


i? ' ., 


391., 


UI4 


13 


34% 


163^ 


381 _, 


1014 


42^ 


44 


136 


1114 


13^4 


15 


17 


19 


^0^'4 


223^ 


2)1, 


361 „ 


3M% 


30 14 


i2 


W 


36 


3734 


393^ 


41'2 


4314 


4514 


140 


11 ?i 


1314 


151/0 


lTl/2 


1914 


2114 


2314 


2514 


2714 


2914 


31 


33 


35 


37 


38% 


40% 


42% 


44% 


46% 


i2 144 


12 


14 


16 


18 


20 


22 


34 


26 


28 


30 


32 


34 


36 


38 


40 


42 


44 


46 


48 


14S 


I2I4 


141., 


111'., 


ISi., 


201.; 


22' ,T 


24 14 


f-'r' 


2H% 


iO-^i 


i3 


35 


37 


39 


41 


4314 


45V4 


47Vi 


4914 


152 


12 '4 


11', 


1; 


19 


21 


-•>i.i 


J.>l-4 






!1% 


33% 


36 


38 


40 


4214 


44I4 


461, 


481., 


50% 


13 156 


13 


I5I4 


1-^4 


191 


21^4 


.-•->■ 4 


26 


2Sil 


i(H4 


521 , 


34% 


36% 


39 


41J4 


4314 


451, 


4T% 


49% 


52 


160 


13Vi 


15V2 


179i 


20 


2214 


2414 


26% 


29 


31 


33J4 


3514 


37% 


40 


4214 


4414 


46% 


49 


51 


53>4 


164 


1394 


16 


I814 


20>/2 


22^4 


25 


2714 


291/0 


32 


34 


361-4 


38% 


41 


4314 


4514 


47% 


50 


5214 


54% 


14 168 


14 


I6I4 


is:'4 


21 


23I4 


2594 


28 


WI4 


32% 


35 


371.; 


59% 


42 


44 14 


46% 


49 


51 14 


53% 


56 


172 


IIU 


h'li 


19 


211.; 


24 


-'i^-i 


2S3^ 


n 


331 ., 


35% 


381, 


101, 


43 


451 ; 


47% 


5OI4 


V31, 


55 


5714 


176 


1-1^^4 


17 


191 


22 


241, 




29 14 


31% 


34 14 


36% 


39 


11': 


44 


461., 


49 


51 14 


5394 


5614 


58% 


15 180 


15 


1714 


20 


2214 


25 


2714 


30 


3214 


35 


3714 


40 


4214 


45 


4714 


50 


521/2 


55 


5714 


60 


184 


15M 


18 


2014 


33 


2514 


28 


3094 


33I2 


3594 


3814 


41 


4314 


46 


4814 


51 


53% 


56^4 


5894 


eiy* 


188 


15''4 


I8I4 


21 


231.; 


26 


28^4 


31I4 


U 


361, 


39 14 


iP., 


4414 


47 


491/2 


52^4 


54% 


5714 


60 


62% 


16 1!'2 


l(i 


l^h 


2II4 


24 


263j 


29I4 


32 


34% 


i-'h 


40 


42', 


(514 


48 


50% 


5314 


56 


58% 


6I14 


64 


196 


I6I4 


19 


il94 


24 li 


27I4 


30 


3294 


351, 


38 


40% 


43', 


4614 


49 


51% 


5414 


5714 


60 


621/2 


6514 


200 


16?i 


19V2 


2214 


25 


'-' '4 


501 


3314 


36 


39 


41% 


441/4 


47V4 


50 


529i 


5514 


5814 


61 


64 


66% 


17 204 


17 


199i229il 


2514 


2,si4 


31^4 


34 


3694 


39% 


421/2 


4514 


48I.4 


51 


53% 


56% 


59i'2 


6214 


3514 


68 



NOTE: Alwaj's take numbers at the top for the height and numbers at the side for 
the length. Follow down the column under the heighth until you come exactly oppo- 
site the length, and where the imaginary lines cross you will tind the number of square 
feet. No fractions less than V^ are used. For convenience this table is indexed both in 

16 



SURFACE 12X17 FEET AND SMALLER. 

pages see note. 



Feet. 








5 




— 








7 






8 







9 







10 







1 





12 


Inches 


51 


54 


57 


60 


64 


68 


72 


76 


80 


84 


88 


92 


9e 


100 


104 


108 


112 


116 


120 


124 


128 


182 


136 


144 


Ft. In. 


















































51 


< 

17 
















































54 


19 


20 














































57 


20 


21 


22 












































5 60 


21 


22 


23 


25 










































64 


22 


24 


25 


26 


28 








































68 


84 


25 


27 


28 


30 


31 






































6 72 


25 


27 


28 


30 


32 


34 


36 




































76 


27 


28 


30 


31 


33 


36 


38 


40 


































80 


2S 


30 


31 


33 


35 


37 


40 


42 


44 
































7 84 


29 


31 


33 


35 


37 


39 


43 


44 


46 


49 






























88 


31 


33 


34 


36 


39 


41 


44 


46 


49 


51 


53 




























92 


32 


34 


36 


38 


41 


4;^ 


46 


48 


51 


53 


56 


58 


























8 96 


34 


36 


38 


40 


43 


45 


48 


50 


53 


56 


58 


61 


64 
























100 


35 


37 


39 


41 


44 


47 


50 


52 


55 


58 


61 


64 


66 
























104 


36 


39 


41 


43 


46 


49 


.52 


55 


57 


60 


63 


6(i 


()9 


72 






















9 108 


38 


40 


42 


45 


48 


51 


51 


57 


60 


63 


66 


69 


72 


75 


78 




















112 


39 


42 


44 


4(1 


49 


53 


5() 


59 


62 


65 


68 


71 


74 


77 


81 


84 


















116 


41 


43 


46 


48 


51 


54 


58 


61 


64 


67 


71 


74 


77 


80 


83 


87 


90 
















10 120 


42 


45 


47 


50 


53 


56 


60 


63 


66 


70 


73 


76 


80 


83 


86 


90 


93 


96 














124 


43 


46 


49 


51 


55 


58 


62 


65 


69 


72 


75 


79 


82 


86 


89 


93 


9(1 


100 


103 












128 


45 


48 


50 


53 


57 


60 


64 


67 


71 


74 


78 


81 


85 


89 


92 


9(1 


91 ( 


103 


10(1 


110 










11 132 


46 


49 


52 


55 


58 


92 


66 


69 


73 


77 


80 


84 


88 


91 


95 


99 


102 


10(i 


110 


113 


117 








136 


48 


51 


53 


56 


60 


64 


68 


71 


75 


79 


83 


87 


90 


94 


98 


102 


105 


109 


113 


127 


121 


124 






140 


49 


52 


55 


58 


62 


66 


70 


74 


77 


81 


85 


89 


93 


97 


101 


105 


109 


112 


116 


121 


125 


129 


132 




12 I'M 


51 


54 


57 


60 


64 


68 


72 


76 


80 


84 


88 


92 


9I> 


100 


104 


108 


112 


116 


l-_'0 


124 


1-28 


i:;2 


13(i 


144 


148 


52 


55 


58 


61 


65 


70 


74 


78 


82 


8() 


90 


94 


9S 


102 


107 


111 


115 


119 


I-'.'! 


127 


131 


135 


139 


148 


152 


53 


57 


60 


63 


67 


71 


76 


80 


84 


88 


93 


9: 


1(11 


105 


io;i 


114 


US 


132 


1-J(1 


131 


13(i 


140 


144 


152 


13 156 


55 


58 


61 


65 


69 


73 


78 


82 


86 


91 


95 


99 


104 


108 


112 


117 


121 


125 


130 


134 


138 


143 


147 


156 


ItiO 


56 


60 


63 


66 


71 


75 


80 


84 


89 


93 


97 


102 


lOfi 


HI 


115 


120 


134 


129 


133 


137 


142 


146 


151 


160 


164 


58 


61 


65 


68 


72 


77 


82 


86 


91 


95 


100 


104 


10!) 


114 


lis 


123 


137 


132 


136 


141 


145 


1.50 


155 


164 


14 168 


59 


63 


66 


70 


74 


79 


84 


88 


93 


9S 


1(12 


1(17 


112 


IKi 


121 


12(1 


130 


135 


140 


144 


119 


1.54 


158 


168 


172 


61 


64 


68 


71 


76 


81 


86 


90 


95 


10(1 


KCi 


110 


114 


119 


124 


12it 


133 


138 


143 


148 


153 


157 


162 


172 


176 


63 


66 


69 


73 


78 


83 


88 


93 


97 


102 


107 


112 


117 


122 


127 


132 


137 


141 


146 


151 


156 


161 


166 


176 


15 180 


63 


67 


71 


75 


80 


85 


90 


95 


100 


105 


no 


115 


120 


125 


130 


135 


140 


145 


150 


155 


160 


165 


170 


180 


184 


65 


69 


72 


76 


81 


87 


92 


97 


102 


107 


112 


117 


122 


127 


133 


138 


143 


148 


153 


158 


163 


168 


173 


184 


188 


66 


70 


74 


78 


83 


88 


94 


99 


104 


lOlt 


115 


120 


125 


130 


135 


141 


146 


151 


156 


162 


167 


172 


177 


188 


16 192 


68 


72 


76 


80 


85 


90 


96 


101 


lot) 


112 


117 


122 


128 


133 


138 


144 


149 


154 


160 


lti5 


170 


17(j 


181 


192 


196 


69 


73 


77 


81 


87 


92 


98 


103 


109 


114 


119 


125 


130 


136 


141 


147 


1,52 


158 


163 


168 


174 


179 


185 


196 


200 


70 


75 


79 


83 


89 


94 


100 


105 


111 


116 


122 


127 


133 


139 


144 


150 


155 


161 


166 


172 


177 


183 


189 


200 


17 '■iOA 


72 


76 


80 


85 


90 


96 


102 


107 


113 


119 


12-1 


130 


136 


141 


147 


153 158 


164 


170 


175 


181 


187 


192 


204 



feet and Inches and they can be used independently or together and the answer found is 
always square feet. For example, it oiakci's no difference wheth<n- you say 3 ft. x 42 in 
36 in. X 3^2 ft. or 3ft X 3^ ft., all mean the same, and by consulting- the table you will 
find in each case the result obtained, IOV2 sq. ft. is the same. Fractions of 1 sq. ft. not 
given in the above table. 

17 



SQUARE FEET OF GLASS OR WALL 

SEE NOTE, 





6 


6J 


7 


n 


8 
84 


»h 


9 


9i 


10 

105 


m 

110 


11 


Hi 


12 


124 


13 


134 


14 


144 


15 


m 


63 


68 


73 


78 


89 


94 


99 
















11 


66 


71 


77 


82 


88 


93 


99 


104 


110 


115 


121 


















11^ 


69 


74 


80 


86 


92 


97 


103 


109 


115 


120 


126 


132 
















12 


72 


78 


84 


90 


96 


102 


108 


114 


120 


126 


132 


138 
















12J 


75 


81 


87 


93 


100 


106 


112 


118 


125 


131 


137 


143 


150 














13 


78 


84 


91 


96 


104 


110 


117 


123 


130 


136 


143 


149 


156 


162 


169 










13^ 


81 


87 


94 


101 


108 


114 


121 


128 


135 


141 


148 


155 


162 


168 


175 


182 








14 


84 


91 


98 


105 


112 


119 


126 


133 


140 


147 


154 


161 


168 


175 


182 


189 


196 






144 


87 


94 


101 


108 


116 


123 


130 


137 


145 


152 


159 


166 


174 


181 


188 


195 


203 






15 


90 


97 


105 


112 


120 


127 


135 


142 


150 


157 


165 


172 


180 


187 


195 


202 


210 


217 


225 


IH 


93 


101 


108 


116 


124 


131 


139 


147 


155 


162 


170 


178 


186 


193 


201 


209 


217 


224 


232 


16 


96 


104 


112 


120 


128 


136 


144 


152 


160 


1()8 


176 


184 


192 


200 


208 


216 


224 


232 


240 


16i 


99 


107 


115 


123 


132 


140 


148 


157 


105 


173 


181 


189 


198 


206 


214 


222 


231 


239 


247 


17 


102 


110 


119 


127 


136 


144 


153 


161 


170 


178 


187 


195 


204 


212 


221 


229 


238 


246 


255 


m 


105 


114 


122 


131 


140 


149 


157 


166 


175 


183 


192 


201 


210 


218 


227 


236 


245 


253 


262 


18 


108 


117 


126 


135 


144 


153 


162 


171 


180 


189 


198 


207 


216 


225 


234 


243 


252 


261 


270 


m 


111 


120 


129 


138 


148 


157 


166 


176 


185 


IIH 


203 


212 


222 


231 


240 


249 


259 


268 


277 


19 


114 


123 


133 


142 


152 


161 


171 


180 


190 


199 


209 


218 


228 


237 


247 


256 


266 


275 


285 


19J 


117 


127 


136 


146 


156 


165 


175 


185 


195 


204 


214 


224 


234 


243 


253 


263 


273 


282 


292 


20 


120 


130 


140 


150 


160 


170 


180 


190 


200 


210 


220 


230 


240 


250 


260 


270 


280 


290 


300 


21 


126 


136 


147 


157 


168 


178 


189 


199 


210 


220 


231 


241 


252 


202 


273 


283 


294 


304 


315 


22 


132 


143 


154 


165 


176 


187 


198 


209 


220 


231 


242 


253 


264 


275 


286 


297 


308 


319 


330 


23 


138 


149 


161 


172 


184 


195 


207 


218 


230 


241 


253 


2ti4 


276 


287 


299 


310 


322 


333 


345 


24 


144 


156 


168 


180 


192 


204 


216 


228 


240 


252 


264 


276 


288 


300 


312 


324 


336 


348 


360 


25 


150 


162 


175 


187 


200 


212 


2;i5 


237 


250 


262 


275 


287 


300 


312 


325 


337 


350 


362 


375 


26 


156 


169 


182 


195 


208 


221 


234 


247 


260 


273 


286 


299 


312 


325 


338 


351 


364 


377 


390 


27 


162 


175 


189 


202 


216 


229 


243 


256 


270 


283 


297 


310 


324 


337 


351 


364 


378 


391 


405 


28 


168 


182 


196 


210 


224 


238 


252 


266 


280 


294 


308 


322 


336 


350 


364 


378 


392 


406 


420 


29 


174 


188 


203 


217 


232 


246 


261 


275 


290 


304 


319 


333 


348 


362 


377 


391 


406 


420 


435 


30 


180 


195 


210 


225 


240 


255 


270 


285 


300 


315 


330 


345 


360 


375 


390 


405 


420 


435 


450 


31 


186 


201 


217 


232 


248 


2G3 


279 


294 


310 


325 


341 


:«6 


372 


387 


403 


418 


434 


449 


465 


32 


192 


208 


224 


240 


256 


272 


288 


304 


320 


336 


352 


368 


384 


400 


416 


432 


448 


464 


480 


33 


198 


214 


231 


247 


264 


280 


297 


313 


330 


346 


363 


379 


396 


412 


429 


445 


462 


478 


495 


34 


204 


221 


238 


255 


272 


289 


306 


323 


340 


357 


374 


391 


408 


425 


442 


459 


476 


493 


510 


35 


210 


227 


245 


262 


280 


297 


315 


333 


350 


367 


385 


402 


420 


437 


455 


472 


490 


507 


525 


36 


216 


234 


252 


270 


288 


306 


324 


342 


360 


378 


396 


414 


432 


450 


468 


486 


504 


522 


540 


37 


222 


241) 


259 


277 


296 


314 


3;« 


351 


370 


3S8 


407 


425 


444 


462 


481 


499 


518 


536 


555 


38 


228 


247 


2(j6 


285 


304 


323 


342 


361 


380 


399 


418 


437 


456 


475 


494 


513 


532 


551 


570 


39 


234 


253 


273 


292 


312 


331 


351 


370 


390 


409 


429 


448 


468 


487 


507 


526 


546 


565 


585 


40 


240 


260 


280 


300 


320 


340 


360 


380 


400 


420 


440 


460 


480 


500 


520 


540 


560 


580 


600 


41 


24t; 


2G6 


287 


307 


328 


348 


369 


389 


410 


430 


451 


471 


492 


512 


533 


553 


574 


594 


615 


42 


2ri2 


273 


294 


315 


336 


357 


378 


399 


420 


441 


462 


483 


504 


525 


546 


567 


588 


609 


630 


43 


2.j8 


279 


301 


322 


344 


365 


387 


408 


430 


451 


473 


494 


516 


537 


559 


580 


602 


623 


645 


44 


264 


286 


308 


330 


a52 


374 


396 


418 


440 


462 


484 


506 


528 


550 


572 


594 


616 


638 


660 


45 


270 


292 


315 


337 


360 


382 


405 


427 


450 


472 


495 


517 


540 


562 


585 


607 


630 


652 


675 


46 


276 


290 


322 


345 


368 


391 


414 


437 


460 


483 


506 


529 


552 


575 


598 


621 


644 


667 


690 


47 


282 


305 


329 


352 


376 


399 


423 


446 


470 


493 


517 


540 


564 


587 


611 


634 


658 


681 


705 


48 


288 


312 


336 


360 


384 


408 


432 


456 


480 


504 


528 


552 


576 


600 


624 


648 


672 


696 


720 


49 


294 


318 


343 


367 


392 


416 


441 


465 


490 


514 


539 


563 


588 


612 


637 


661 


686 


710 


735 


50 


300 


325 


350 


375 


400 


4A5 


450 


475 


500 


525 


550 


575 


600 


625 


650 


675 


700 


725 


750 


51 


306 


331 


357 


382 


408 


433 


459 


484 


510 


535 


5(;i 


586 


612 


637 


663 


688 


714 


739 


765 


52 


312 


338 


364 


390 


416 


442 


4ii8 


494 


520 


546 


572 


598 


624 


650 


676 


702 


728 


754 


780 


53 


318 


344 


371 


397 


424 


450 


477 


503 


530 


556 


583 


609 


636 


662 


689 


715 


742 


768 


795 


54 


324 


351 


378 


405 


432 


459 


486 


513 


540 


567 


594 


621 


648 


675 


702 


729 


756 


783 


810 


55 


330 


357 


385 


412 


440 


467 


495 


522 


550 


577 


605 


632 


660 


707 


715 


742 


770 


797 


825 


56 


336 


364 


392 


420 


448 


476 


504 


532 


560 


588 


616 


644 


672 


700 


728 


756 


784 


812 


840 


57 


342 


370 


399 


427 


456 


484 


513 


541 


570 


598 


627 


655 


684 


712 


741 


769 


798 


826 


855 


58 


348 


377 


40(! 


•iST) 


4(>4 


493 


522 


551 


580 


609 


638 


667 


696 


725 


7.54 


7a3 


812 


841 


870 


59 


354 


383 


413 


442 


472 


501 


531 


560 


590 


619 


649 


678 


708 


737 


767 


796 


826 


855 


885 


60 


360 


390 


420 


450 


480 


510 


540 


570 


600 


630 


660 


690 


720 


750 


780 


810 


840 


870 


900 


61 


366 


397 


427 


457 


488 


518 


549 


579 


610 


640 


671 


701 


732 


762 


793 


823 


854 


884 


915 


62 


372 


403 


434 


465 


496 


527 


558 


589 


620 


651 


682 


713 


744 


775 


806 


837 


868 


899 


930 


63 


378 


409 


441 


472 


504 


535 


567 


598 


630 


661 


693 


724 


756 


787 


819 


850 


882 


913 


945 


64 


384 


415 


448 


480 


512 


544 


576 


608 


640 


672 


704 


736 


768 


800 


832 


864 


896 


928 


960 


65 


390 


422 


455 


487 


520 


552 


585 


617 


650 


682 


715 


747 


780 


812 


845 


877 


910 


942 


975 



18 



SURFACE FROM 6X10 FT. TO 25X65 FT. 

PACES 62 AND 63. 





15i 


16 


16i 


17 


m 


18 


18^ 


19 


19^ 


20 


201' 


21 


21J 


22 


22J 


23 


23J 


24 


24i 


25 


151 
16 


240 

248 


256 






































16i 
17' 


255 
263 


264 
272 


272 

280 




































18 


271 
279 


280 
288 


288 
297 


297 
306 


315 


324 






























18A 
19 


286 
294 


296 
304 


305 
313 


314 

323 


323 
332 


333 
342 


342 
351 




























19^ 
20 


302 
310 


312 
320 


321 
330 


331 
340 


341 
350 


351 
360 


360 
370 


370 

380 


380 
390 


390 
400 






















21 


325 


336 


346 


357 


367 


378 


388 


399 


409 


420 


430 


441 


















22 


341 


352 


363 


374 


385 


39(i 


407 


418 


429 


440 


451 


462 


471 


484 












23 


35(i 


368 


379 


391 


402 


414 


425 


437' 44s 


460 


471 


483 


495 


506 


517 


529 










24 


372 


384 


396 


408 


426 


432 


4441 451; 4(;s 


4S0 


482 


504 


516 


528 


540 


552 


564 


576 






25 


387 


400 


412 


425 


437 


450 


462 


475; 487 


500 


512 


525 


533 


550 


563 


575 


587 


600 


613 


625 


26 


403 


416 


429 


442 


455 


468 


481 


494 


507 


520 


533 


546 


559 


572 


585 


598 


611 


624 


637 


650 


27 


418 


432 


445 


459 


472 


486 


499 


513 


526 


540 


553 


567 


580 


594 


607 


621 


634 


648 


661 


675 


28 


431 


448 


462 


476 


490 


504 


518 


532 


546 


560 


574 


588 


602 


616 


630 


644 


658 


672 


686 


700 


29 


449 


464 478 


493 


507 


522 


536 


551 


565 


580 


594 


609 


623 


638 


652 


667 


681 


696 


710 


725 


30 


465 


480 


495 


510 


525 


54t) 


555 


570 


585 


600 


615 


630 


645 


660 


675 


690 


705 


720 


735 


750 


31 


480 


496 


511 


527 


542 


558 


573 


589 


604 


620 


635 


651 


667 


682 


698 


713 


729 


744 


760 


775 


32 


496 


512 


528 


544 


560 


576 


592 


608 


624 


640 


656 


672 


688 


704 


720 


736 


752 


768 


784 


800 


33 


511 


528 


544 


561 


577 


594 


610 


627 


643 


660 


676 


693 


709 


726 


742 


759 


775 


792 


808 


825 


34 


527 


544 


561 


578 


595 


612 


629 


646 


663 


680 


697 


714 


731 


748 


765 


782 


799 


816 


833 


850 


35 


542 


560 


577 


595 


612 


630 


647 


665 


682 


700 


717 


735 


752 


770 


787 


805 


822 


840 


857 


875 


36 


558 


576 


594 


612 


630 


648 


666 


684 


702 


720 


738 


756 


774 


792 


810 


828 


846 


864 


882 


900 


37 


573 


592 


610 


629 


647 


666 


684 


703 


721 


740 


758 


777 


795 


814 


832 


851 


869 


880 


898 


925 


38 


589 


608 


627 


646 


665 


684 


703 


722 


741 


760 


779 


798 


817 


836 


855 


874 


893 


912 


931 


950 


39 


604 


624 


643 


603 


682 


702 


721 


741 


760 


780 


799 


819 


839 


858 


878 


897 


917 


936 


956 


975 


40 


620 


640 


660 


680 


700 


720 


740 


760 


780 


800 


820 


840 


860 


880 


900 


920 


940 


960 


980 


1000 


41 


635 


656 


676 


697 


717 


738 


758 


779 


799 


820 


840 


861 


882 


902 


923 


944 


964 


985 


1004 


1025 


42 


651 


672 


693 


714 


735 


756 


777 


798 


819 


840 


860 


882 


903 


924 


945 


966 


987 


1008 


1029 


1050 


43 


666 


688 


709 


731 


752 


774 


795 


817 


838 


860 


881 


903 


924 


946 


967 


989 


1010 


1032 


1053 


1075 


44 


682 


704 


726 


748 


770 


792 


814 


836 


858 


880 


901 


924 


946 


968 


990 


1012 


1034 


1056 


1078 


1100 


45 


697 


720 


742 


765 


787 


810 


832 


855 


877 


900 


922 


945 


967 


990 


1012 


1035 


1057 


1080 


1102 


1125 


46 


713 


736 


759 


782 


805 


828 


851 


874 


897 


920 


942 


906 


9S!1 


1012 


1035 


1058 


1081 


1104 


1137 


1150 


47 


728 


752 


775 


799 


822 


846 


869 


893 


916 


940 


963 


987 


1010 


1034 


1057 


1081 


1104 


112b 


1151 


1175 


48 


744 


768 


792 


816 


840 


864 


8(<8 


912 


936 


900 


983 


1008 


1032 


1056 


1080 


1104 


1128 


1152 


1176 


1200 


49 


759 


784 


808 


833 


857 


882 


906 


931 


955 


980 


1004 


1029 


1053 


1078 


1102 


1127 


1151 


1176 


1200 


1225 


50 


775 


800 


825 


850 


875 


900 


925 


950 


975 


1000 


1025 


1050 


1075 


1100 


1125 


1150 


1175 


1200 


1225 


1250 


51 


790 


816 


841 


867 


892 


ills 


943 


96! 


994 


102( 


104(i 


1071 


1096 


1122 


1147 


1173 


1198 


1224 


1250 


1275 


52 


806 


832 


858 


884 


910 


936 


itOL 


9X8 


1014 


104( 


1066 


1092 


1118 


1144 


1170 


1196 


1222 


1248 


1274 


1300 


53 


821 


848 


874 


901 


927 


9.W 


980 


10(17 


1033 


106( 


1086 


1113 


1139 


1166 


1192 


1219 


1255 


1272 


1298 


1325 


54 


837 


864 


891 


918 


945 


972 


999 


W2i 


1053 


1080 


1107 


1134 


1161 


1188 


1215 


1242 


1269 


1296 


1323 


1350 


55 


85'. 


880 


907 


935 


962 


990 


1017 


1045 


1072 


1100 


1127 


1155 


1182 


1210 


1237 


1265 


1292 


1320 


1347 


1375 


56 


868 


890 


924 


952 


9«0 


lOOS 


103< 


1064 


10! 12 


iia 


1148 


1171 


1202 


1232 


1260 


1288 


1316 


1344 


1372 


1400 


57 


883 


912 


94( 


96! 


<)!t7 


1(12( 


1654ii(is:;!llll 


114( 


1168 


1197 


1225 


1254 


12S2 


1311 


133!l 


136S 


laiil 


1425 


58 


899 


928 


957 


list 


1015 


1(144 


1073 


11(12 


1131 


ii(;o 


118; 


1218 


1247 


1276 


1315 


1334 


13(;3 


1392 


1421 


1450 


69 


914 


944 


97: 


KKi: 


l(t:;2'l(i6i. 


1091 


1121 


115( 


1180 


1209 


1239 


1268 


1298 


1327 


1357 


1386 


1416 


1445 


1475 


60 


93C 


960 


99( 


11)21 


11150 10S( 


1110 


114( 


117( 


1200 


1230 


1260 


1290 


1320 


1350 


1380 


1420 


144(1 


1470 


1500 


61 


94£ 


1 

ovi; i()(" 


lo:i7 


l(l(;71(»!l^ 


112s 


115! 


118! 


122( 


i25(: 


1281 


1311 


1342 


1372 


UO.", 


1433 


1464 


1494 


1525 


62 


9<>1 


!»'.l'J Idl'.". lii:4 lOS,-, mi;!ll4T IITS 120! 


124( 


1271 


1302 


1333 


1364 


139r 


142C 


1457 


14SS 


15111 


1550 


63 


97f 


ioiisii):!',ii()7J|ii()2ii:;4:iic.5n;iV|i-J2s 


12<;( 


12!)1 


1323 


1354 


1386 


1417 


1449 


1480 


1512 


1553 


1575 


64 


',»',i-. 


i(v_'4 lor.r, iiissli 1211 iifii' ns4 1-J1IM24N 


r2K( 


1312 


1344 


1376 


1408 


1440 


1472 


1504 


1536 


1568 


1600 


65 liK)- 


l04(jio72liiii:,ii:;Tll7"i2o2i2:;rj!l2r,7 


i:i0( 


1333 


1365 


1397 


1430 


1462 


1495 


1527 


1550 


1582 


1625 



19 



SQUARE FEET OF CLASS OR WALL 





6 
336 


6i 
361 


7 
392 


420 


8 
l48 


8^ 
47b 


9 
504 


9i 
532 


10 
560 


588 


11 

616 


644 


12 


m 


13 


I3i 


14 


m 


15 


15J 


56 


672 


700 


728 


756 


784 


812 


840 


868 


57 


342 


371 


399 


428 


450 


485 


513 


542 


570 


599 


627 


656 


684 


713 


741 


770 


798 


827 855 


884 


58 


348 


377 


400 


4:i5' 4<i4 


49::* 


.522 


.551 


580 


009 


638 


667 


696 


725 


754 


783 


812 


841 870 


899 


59 


354 


384 


413 


44:! 472 


."lO'_ 


.-,:;i 


501 


.■)'.1( 


(i2( 


04!; 


679 


708 


738 


767 


797 


82(i 


8.56 885 


915 


60 


360 


390 


42(1 


4:.( 


480 


51( 


54( 


57( 


(;(!( 


(i3( 


00( 


690 


720 


750 


780 


810 


840 


870 


900 


930 


61 


366 


397 


427 


458 


488 


519 


549 


580 


610 


641 


671 


702 


732 


763 


793 


824 


854 


885 


915 


946 


62 


372 


403 


434 


405 


490 


527 


5.58 


58S 


620 


651 


682 


713 


744 


775 


800 


837 


868 


899 


930 


961 


63 


37S 


41( 


441 


473 


504 


.5:i0 


.507 


,599 


o;;o 


662 


693 


725 


750 


788 


819 


851 


882 


914: 945 


977 


64 


384 


41( 


44S 


4,S0 512 


544 


57( 


(;08 


640 


672 


704 


730 


768 


800 


8:i2 


864 


806 


928 960| 992 


65 


3'.)0 


42: 


45:> 


4.S8 520 


.553 


585 


018 


050 


683 


715 


748 


780 


813 


845 


878 


910 


943: 9751 1008 

1 


66 


396 


429 


462 


495 


528 


561 


594 


627 


660 


693 


726 


759 


792 


825 


858 


891 


924 


957 


990 1023 


67 


402 


430 


469 


5a3 


536 


570 


603 


637 


670 


701 


737 


771 


804 


838 


871 


905 


938 


972 


1005 10.39 


68 


408 


442 


476 


510 


544 


578 


612 


646 


680 


714 


748 


782 


816 


850 


884 


918 


952 


980 1020, 10,54 


69 


414 


449 


483 


518 


552 


587 


621 


0,50 


690 


725 


759 


7W 


828 


863 


897 


932 


;ioo 


1001 io:;5 1070 


70 


420 


455 


490 


525 


560 


595 


030 


665 


700 


735 


770 


805 


840 


875 


910 


945 


98(1 


1015 105(1 


1085 


71 


426 


462 


497 


533 


568 


604 


639 


675 


710 


746 


781 


817 


852 


888 


923 


959 


994 


1030 1065 


1101 


72 


432 


468 


504 


540 


.57(; 


012 


048 


684 


720 


756 


7i)2 


828 


804! 900 


936 


972 


1008 


1044 1080 


1116 


73 


438 


475 


511 


54s' 5S-1 


021 


(;57 


(594 


730 


707 


80;i 


840 


870 


913 


949 


980' 1022' 10,50 1095 


1132 


74 


444 


481 


:.is 


Tir.;. .".'. •_' 


(;29 


(;(;(' 


703 


740 


777 


814 


851 


888 


925 


SH>2 


909 i(i:;»; 1073 llio! 1147 


75 


450 


48S 


r.L'.-. 


:.r,:; ooii 


ii'AS 


075 


7i;i 


750 


788 


825 


803 


900 


938 


975 


101:;, 10,50 


1088 1125 


1163 


76 


456 


494 




;,;, 1 , ,1 IX 


046 


(i84 


722 


760 


798 


836 


874 


912 


950 


988 


1020 1064 


1102 1140 


1178 


77 


4(i2 


501 


."): ;; i 


.■,7s r.ii; 


655 


693 


732 


770 


809 


847 


886 


924 


9(>3 


1001 


1040 1078 


1117 11,55 


1194 


78 


4(;s 


507 


540 


:,s:>. (-,24 


OfS 


702 


741 


780 


819 


858 


897 


936' 975 


1014! 10.53 1002' 1131' 1170 


1209 


79 


474 


514 


55:; 


5'.i:i (^32 


072 


711 


751 


790 


8:50 


8(;'.t 


909 


948' 988 


10271 io(;7 ikk; 1140 1185. 1225 


80 


480 


52(1 


500 


00(1 


040 


080 


720 


700 


800 


840 


880 


920 


960 1000 


1040 1080 1120 Ut;o 1200 1240 

1 1 ' ' 


81 


486 


527 


567 


608 


648 


689 


729 


770 


810 


851 


891 


932 


972 1013 


1053| 1094; 1134 


1175! 1215 


1256 


82 


492 


533 


574 


615 


656 


697 


738 


779 


820 


861 


iK)2 


943 


984 1025 


1066 11071 1148 


1189; 1230 


1271 


83 


498 


:540 


5S1 


023 


664 


706 


747 


789 


830 


872 


913 


955 


99(; 1038 


1079 1121' 1102 


1204' 124.5 


1287 


84 


504 


54(; 


5SS 


030 


672 


714 


750 


798 


840 


882 


924 


966 


1008 1050 


1092, 11:54: 117(; 


1218 12(;o| 1302 


85 


510 


553 


595 


(i38 


680 


723 


705 


808 


850 


893 


935 


978 


1020 1063 

1 


1105 1148 1190 


12.;3 1275! 1318 


86 


510 


559 


(i02 


()45 


688 


731 


774 


817 


860 


903 


94(i 


989 


1032 1075 


1118; 1161 1204 


1247 1290 


1333 


87 


522 


5(i0 


009 


053 


696 


740 


783 


827 


870 


914 


957 


1001 


1044> 1088 


1131' 11751 1218 


1202 1305 


1349 


88 


528 


572 


016 


660 


704 


748 


792 


836 


880 


924 


9<i8 


1012 


10.56 1100 


1144 1188 1232 


1276 


1320 


1364 


89 


534 


579 


023 


6(58 


712 


757 


801 


840 


890 


935 


979 


1024 


1(108 1113 


11,57 1202 1240 


1291 


1,335 


1380 


90 


540 


585 


630 


675 


720 


765 


810 


855 


900 


945 


990 


i(.i:;5 


1080 1125 


1170 1215: 1200 


1305 


1350 


1395 


91 


546 


592 


637 


683 


728 


774 


819 


805 


910 


950 


1001 


1047 


1092 1138 


1183 


1229 1274 


1320 


1365 


1411 


92 


552 


598 


644 


090 


736 


782 


828 


874 


920 


900 


1012 


1058 


IKUl 1150 


1196 


12421 1288 


1334 


1380 


1426 


93 


558 


605 


651 


098 


744 


791 


837 


884 


930 


977 


102:; 


1070 


1116, 1103 


1209 


1256 


1302 


1349 1:595 


1442 


94 


504 


Oil 


658 


705 


752 


799 


846 


893 


940 


987 


lo:i4 


1081 


1128, 1175 


1222 


1269 


1316 


1303 1410 


1457 


95 


570 


618 


665 


713 760 


808 


855 


903 


950 


998 


1045 


10'.t3 


1140 


1188 


1235 


1283 


1330 


1378 


1425 


1473 


96 


57C 


624 


672 


720 


7(i8 


816 


864 


912 


960 


1008 


1056 


1104 


1152 


1200 


1248 


1296 


l.Ul 


1392 


1440 


1488 


97 


582 


631 


679 


72S 


776 


825 


873 


9'^2 


970 


1019 


1067 


1116 


1164 


1213 


1201 


1310 1358 


1407 


1455 


1504 


98 


58s 


g;'.t 


680 


73.-. 784 


S:J3 


882 


931 


980 


1029 


1078 


1127 


1170 1225 


1274 


1323 1372 


1421 


1470 


1519 


911 


5; 14 


044 


093 


74:; 792 


842 


891 


941 


990 


1040 


10,80 


1139 


1188 1238 


1287 


1337 


1380 


1430 


1485 


1,535 


10(1 


6011 


050 


700 


750 


80(1 


850 


900 


;i5o 


1000 


1050 


llOo 


1150 


1200 1250 


1300 


1350 


1400 


1450 


1500 


1550 


105 


630 


683 


735 


788 


840 


893 


945 


998 


10.50 


1103 


1155 


1208 


1260 1313 


1365 


1418 


1470 


1523 


1575 


1628 


110 


660 


715 


770 


825 


880 


935 


990 


1045 


1100 


1155 


1210 


1265 


1320 1375 


1430 


1485 


1540 


1595 


16,50 


1705 


115 


690 


748 


805 


8(i;! 


920 


978 


lo.-;5 


1003 


11.50 


1208 


1205 


i:;23 


1:^80 


1438 


1495 


1553 


1610 


1668 


1725 


1783 


12(1 


720 


780 


840 


900 


900 


1020 


108(1 


1140 


1200 


I2(;(i 


i;;2(i 


i:;,8ii 


1440 


1500 


1560 


1620 


1680 


1740 


1800 


1800 


125 


750 


813 


875 


938 


100(1 


loo:.; 


1125 


11.88 


1250 


1313 


137.-. 


1438 


1.500 


1563 


1625 


1688 


1750 


1813 


1875 


1938 


130 


780 


845 


910 


975 


1040 


1105 


1170 


1235 


1300 


1365 


1430 


1495 


1500 


1625 


1690 


1755 


1820 


1885 


1950 


2015 


135 


810 


878 


945 


1013 


1080 


1148 


1215 


1283 


1350 


1418 


1485 


1553 


1620 


1688 


1755 


1823 


1890 


1958 


2025 


2093 


140 


840 


010 


980 


1050 


1120 


1190 


1200 


1.330 


1400 


1470 


1,540 


i(;io 


1(>80 


17.50 


1820 


1890 


l9(;o 


2030 


2100 


2170 


14r. 


87(1 


94:! 


1015 


1088 


1160 


1233 


1305 


1378 


14.50 


1,523 


15'.1,-. 


i(;r.8 


1740 


1813 


1.885 


1058 


2o:;(i 


2103 


2175 


2248 


150 


'.Hid 


9,5 


1050 


1125 


1200 


1275 


1350 


1425 


150(1 


1575 


1(.,50 


172,5 


1,800 


1875 


195(1 


2025 


2100 


2175 


2250 


2325 


155 


93(1 


1008 


1085 


1163 


1240 


1318 


1395 


1473 


1,550 


1628 


1705 


1783 


1860 


1938 


2015 


2093 


2170 


2248 


2325 


2403 


160 


96(1 


1040 


1120 


1200 


1280 


1300 


1440 


1520 


1600 


1080 


1760 


1.840 


1920 


2000 


2080 


2100 


2240 


2320 


2400 


2480 


165 


99(1 


1073 


1155 


1238 


1320 


1403 


1485 


1508 


1050 


1733 


1815 


1808 


1980 


2063 


2145 


2228 


2310 


2393 


2475 


2558 


170 


1020 


1105 


1190 


1275 


1360 


1445 


15:^0 


1015 


1700 


1785 


1870 


i;i.55 


2040 


2125 


2210 


2295 


2380 


2465 


2550 


2635 


175 


1050 


1138 


1225 


1313 


1400 


1488 


1575 


1663 


1750 


1838 


1925 


2013 


2100 


2188 


2275 


2363 


2450 


2538 


2625 


2713 


180 


1080 


1170 


1260 


1350 


1440 


1530 


1620 


1710 


1800 


1890 


1980 


2070 


2160 


2250 


2340 


2430 


2520 


2610 


2700 


2790 


185 


111(1 


1203 


1295 


1.388 


1,580 


1573 


1605 


1758 


18,50 


1943 


20.35 


2128 


2220 


2313 


2405 


2498 


2590 


2083 


2775 


2868 


190 


1140 


1 ■_>:;-, 


i;'.30 


1425 


1.^.20 


i(;i.^ 


1710 


ISO.-. 


1900 


1095 


2000 


2185 


2280 


2375 


2470 2505 


20(;o 


27.55 28.50] 


2945 


lor.'iKo 


rji;s'i:;i;:, 


ik;:; 


i:,(;ii 


lt;.-,s 


17.V. 


1 8.",: : 


1050 


2048 


214.5 


2-j-i:; 


2:; 10 


24: ;8 


25:!.5! 20:;:; 27:;(1' 2.vj,sj L"!!'.-,] 


3023 


20(i:iL'ii(i 


i:;iio;i4(Hi 


i.")ito;i(;o(i 


1700 


1800 


I'.lOO 


JOOO 


2100 


22(10 


2:ioo 


2400 


2500 


2000! 2T00 280(ii 2000 300(l| 3100 



20 



SURFACE 6X56 FEET AND LARGER. 





16 

S'.h; 


\6i 

924 


17 


ml 


18 

lOOS 


18A 

103(1 


19 

1004 


19J 

1092 


20 

1120 


20i 

114S 


21 

1176 


22 

1232 


23 

1288 


24 

1.344 


25 

1400 


26 

1456 


27 


28 

i."m;s 


29 
1624 


30 


56 


952 980 


1512 


1680 


57 


012 


',•41 


9(;9 99S 


.021 ; 


lO.V. 


lo.s;; 


1112 


1140 


ii(;!i 


11! 17 


1254 


i;;ii 


i;;6s 


1425 


1482 


15:!!l 


15!l(l 


1653 


1710 


58 


928 


957 


use 1015 


1044 


107:; 


1102 


ii;;i; 


IK.O 


11S!I 


1218 


1276 


1334 


13!t2 


14.50 


1.508 


1566 


1624 


1682 


1740 


59 


944 


974 


loo:; lo:;:! 


io(;2 


1002 


1121 


1151, 


U.SO 


1210 


1239 


1298 


1357 


1416 


1475 


1534 


1593 


1652 


1711 


1770 


60 


960 


990 


1020105(1 


lo.so 


1110 


1140 


1170 


1200 


12:30 


1260 


1320 


1380 


1440 


1500 


1560 


1620 


168(t 


1740 


180O 


61 


976 


1007 


1037101 ;s 


109.S 


1129 


11.59 


ll!tO 


1220 


1251 


12S1 


1342 


140: i 


1464 


1525 


1586 


1647 


1708 


1769 


1830 


62 


992 


1023 


1054: losr. 


iik; 


1147 


117S 


l2o:i 


1240 


1271 


i;;o2 


i;;(;4 


1426 


1488 


1.550 


1612 


1674 


1736 


1798 


18(50 


63 


1008 


104(1 


1071 ii(i:; 


ii;;4' 


ii(;(; 


11'.I7 


122!l 


1260 


1292 


1323 


i;;8(i 


1449 


1512 


1575 


1638 


1701 


1764 


1827 


1890 


64 


1024 


1056 


loss 1120 


11.-.2I 


11.S4 


1210 


124S 


1280 


1312 


1344 


1408 


1472 


1536 


1600 


1664 


1728 


1792 


1856 


1920 


65 


1040 


1073 


I105ii;is 


1170 


l2o;; 


12;J5 


1268 


l;j00 


1333 


1365 


14.30 


1495 


1.560 


1625 


1690 


1755 


1820 


1885 


1950 


66 


1056 


1089 


1122 1155 


ll.SS 


1221 


12.54 


1287 


1320 


1353 


1386 


14.52 


1518 


1584 


1650 


1716 


1782 


1848 


1914 


1980 


67 


1072 


not; 


li:v.iii7:; 


120(; 


1240 


127;; 


1.3071 


1340 


1374 


1407 


1474 


1541 


1608 


1675 1742| 


1809 


1876 


1943 


2010 


68 


1088 


1122 


115(;il90 


1224 


125S 


1292 


i:;26! 


1360 


1394 


1428 


1496 


1564 


1632 


1700 


1768 


1836 


1904 


1972 


2040 


69 


1104 


1139 


11731208 


1242 


1277 


1311 


i;;4(; 


i;;,so 


1415 


1449 


1518 


1587 


1656 


1725 


1794 


1863 


1932 


2001 


2070 


70 


112(1 


1155 


11901225 


i2«;o 


1295 


1330 


i:.;(;5 


1400 


1435 


1470 


1540 


1610 


1680 


1750 


1820 


1890 


1960 


2030 


2100 


71 


ii3(; 


1172 


: 
1207 1243 


1278 


1314 


l:!49 


1.185 


1420 


14.56 


1491 


1562 


1633 


1704 


1775 


1846 


l!n7 


1988 


2059 


2130 


72 


1152 


liss 


1224 121 :0 


1290 


i;;;'.2 


i:;6s 


1404 


1440 


1476 


1512 


1584 


1656 


1728 


1800 1S72' 1!I44 


2016 


2088 


2160 


73 


1168 


1205 


1241 1278 


1314 


1351 


1387 


1424 


i4(;(i 


14!I7 


1533 


1606 


1679 


1752 


1825 1898, 1971 


2044 


2117 


2190 


74 


1184 


1221 


12581295 


1332 


i;i69 


140li 


1443 


1480 


1517 


1554 


1628 


1702 


1776 


1850 1924 1998 


2072 


2146 


2220 


75 


1200 


1238 


1275il313 

1 


1350 


1388 


1425 


1463 


1500 


1538 


1575 


1650 


1725 


1800 


1875 1950j 2025 


2100 


2175 


2250 


76 


I2i(; 


1254 


1292 13: !o 


i:!(;s 


140(; 


1444 


14S2 


1520 


1558 


1596 


1672 


1748 


1824 


1900 


1970! 2052 


2128 


2204 


2280 


77 


1232 


1271 


i;;o'Ji:!4s 


13S(; 


1425 


I*;:; 


1.502 


1.540 


1579 


1617 


1694 


1771 


1848 


1925 


2002 2079 


2156 


2233 


2310 


78 


124S 


1287 


132(ii:;(i5 


1404 


144:; 


l4.-^2 


1.521 


l.",{i() 


15!)9 


1638 


1716 


1794 


1872 


1950 


2028: 2106 


2184 


2262 


2340 


79 


1264 


1304 


134ii:;s:; 


1422 


141.2 


1.501 


1.541 


15,S0^ 1(;20 


1659 


1738 


1817 


1896 


1975 


2054 2133 


2212 


2291 


2370 


80 


1280 


1320 


13601400 


144(» 


14.S0 


1.520 


i5(;o 


i(;oo 1640 


1680 


1760 


1840 


1920 


2000 


2080 


2160 


2240 


2320 


2400 


81 


1296 


1337 


13771418 


145S 


149; 1 


15:;9 


1.5Sfl 


1(.20 ICOl 


1701 


1782 


1S(;;; 


1941 


2025 


2106 


2187 


2268 


2349 


2430 


82 


1312 


1353 


1394 14: ;5 


147(1 


1517 


1.5.5S 


1.5!l!) 


1(14(1 16S1 


1722 


1804 


ISSIl 


l!Mi8 


2050 


2132 


2214 


2296 


2378 


2460 


83 


1328 


1370 


1411 145:; 


1494 


15;;(; 


1577 


1619 


1660 


1702 


1743 


1S26 


1909 


1992 


2075 


2158 


2241 


2324 


2407 


2490 


84 


1344 


1386 


14281470 


1512 


15.54 


1596 


1638 


1680 


1722 


1764 


1848 


1932 


2016 


2100 


2184 


2268 


2352 


2436 


2520 


85 


1360 


1403 


144511488 


1530 


1573 


1615 


1658 


1700 


1743 


1785 


1870 


1955 


2040 


2125 


2210 


2295 


2380 


2465 


2550 


86 


i:;7(; 


Ul'.i 


14(;2150.-. 


1.54S 


1.591 


i(;:;4 


1677 


1720 


17(;:; 


1S0(; 


18! 12 


1!I78 


2064 


2150 


2236 


2322 


2408 


2494 


2580 


87 


i:;:t2 


14: k; 


1479 152:; 


l,-.t;(; 


i(;i(i 


lij5;; 


16! 17 


1740 17S4 


isi;7 


1914 


2001 


2088 


2175 


2262 


2349 


2436 


2523 


2610 


8S 


14(18 


1452 


1496154(1 


1584 


1628 


i(;72 


1716 


17(10, 1804 


1848 


1936 


2024 


2112 


2200 


2288 


2376 


2464 


2552 


2640 


89 


1424 


1469 


1513 


1558 


1602 


1047 


1691 


1736 


1780 


1825 


1869 


1958 


2047 


2136 


2225 


2314 


2403 


2492 


2581 


2670 


90 


1440 


1485 


1530 


1575 


1620 


1665 


1710 


1755 


1800 


1845 


1890 


1980 


2070 


2160 


2250 


2340 


2430 


2520 


2610 


2700 


91 


1456 


1502 


1547 


1593 


1638 


i(;84 


172! 


1775 


1820 


I8(;c 


1911 


2002 


2093 


2184 


2275 


2366 


2457 


2,548 


2639 


2730 


92 


1472 


1518 


1564 


1610 


1656 


1702 


174S 


17! (4 


l.-<4( 


l.S.S( 


VXVJ 


2024 


2116 


2208 


2300 


2392 


24S4 


257<i 


2668 


2760 


93 


1488 


1535 


1581 


1628 


1674 


1721 


1767 


1S14 


1S(1( 


i;i07 


1953 


2046 


2139 


2232 


2325 


2418 


2511 


2604 


2697 


2790 


94 


1504 


1551 


1598 


1645 


1692 


1739 


1786 


18.33 18.S( 


1!»27 


1974 


2068 


2162 


225( 


2350 


2444 


2538 


2632 


2726 


2820 


95 


1520 


1568 


1615 


1663 


1710 


1758 


1805 


1853 190( 


194S 


19;i5 


2090 


2185 


2280 


2375 


2470 


2565 


2660 


2755 


2850 


9() 


153( 


1584 


i(;:'.2 


ICSO 


1728 


177( 


1S24 


1872 192( 


i!i(;s 


2016 


2112 


2208 


2304 


2400 


24! (6 


2.592 


•_!(;ss 


2784 


2880 


97 


1552 


16(tl 


1649 


ICON 


174( 


179," 


1S4: 


1S!I21!I4( 


1!!.^! 


2037 


2134 


2231 


232S 


242." 


2522 


2(11! 


271C 


28i;; 


2910 


98 


1568 


1617 


lOdCi 


171 r 


17(;4 


ISi; 


1.s(;l 


l!illl!H.( 


200! 


205S 


2156 


2254 


2351 


245( 


2548 


2(14( 


2744 


2842 


2940 


90 


1584 


1634 


1683 


173; 


1782 


is; 12 


ISSl 


1!K;1 


r.is( 


2o;_i( 


207! 


2178 


2277 


237C 


2475 


2574 


2673 


2772 


2871 


2970 


100 


160(: 


1650 


1700 


1750 


180C 


185( 


1!I0( 


1!I50 


200( 


205( 


2100 


2200 


2300 


2400 


2500 


2600 


2700 


2800 


2900 


3000 


lor 


ir.so 


173: 


17S5 


is;',s 


1S90 


194: 


l!l!l." 


204 s 


2iO( 


21.5: 


22or 


231 ( 


241." 


252( 


2(;2r 


27: !( 


2S3," 


2!i4( 


3045 


3150 


110 


176( 


isir 


is7(i 


v.^-i' 


19S( 


2o;;." 


20! K 


214." 


220( 


225" 


231( 


242( 


2.5: ;( 


2(14( 


27.51 


■_'S(;( 


297( 


30S( 


3190 


3300 


115 


1841 


18! (> 


1955 


201: 


207< 


212S 


21.S.- 


224; 


2;;o( 


235s 


241." 


253( 


264," 


276( 


287." 


299( 


;;ior 


322( 


3335 


3450 


120 


1920 


198C 


204( 


210( 


2ii;( 


222( 


22S( 


2;;4( 


240( 


246( 


2.521 


2640 


276( 


2880 


3000 


3120 


3240 


3360 


3480 


3600 


125 


2000 


2063 


212" 


218S 




2:!i: 


2:17." 


24;;s 


250( 


2.563 


262." 


2750 


2875 


3000 


3125 


3250 


3375 


3500 


3625 


3750 


130 


208( 


214r 


221( 


227.- 


234( 


240." 


247( 


'*5'1." 


26(l( 


2( ;(;."■ 


2730 


2860 


2990 


3120 


325( 


33S( 


;i5io 


3(;4( 


3770 


3900 


135 


216f 


222^ 


229r 


2: i( '■: 


24: ;( 


240S 


25( ;." 


2( ;:;: 


270( 


2768 


2835 


297C 


3105 


3240 


337." 


351( 


:;(i4." 


37S( 


3915 


4050 


140 


224( 


231C 


23S( 


245( 


252( 


2590 


266( 


273( 


280(. 


2S7( 


2940 


3080 


322( 


3360 


350( 


;i64( 


37S( 


o!t2( 


4060 


4200 


i4r 


232( 


239;^ 


240- 


■iri: IS 


2(;i( 


2683 


275E 


2828 


2900 


2973 


3045 


;ii9C 


3,3;;." 


3480 


362." 


3770 


3915 


400( 


4205 


4;350 


151 


240f 


247r 


2551 


2{V2: 


270( 


2775 


285C 


2925 


300C 


3075 


315t 


330( 


3450 


3600 


3750 


3900 


4050 


4200 


4350 


4500 


I5r 


248f 


255S^ 


263F 


271: 


279( 


2S(;s 


294." 


:;o23 


:;10( 


;;i7? 


3255 


.341( 


3.565 


372( 


:!S7." 


4(i::( 
41ii( 


41.S." 
4:!2( 


4;;4( 

44S( 


44! 1." 
4(;4( 


4i;.50 
4800 


25(i( 


2(!4( 


272( 


2S( 1( 


28S( 


■2'M'<I 


:;o4( 


:;12( 


: ;'_'( )( 


;;28c 


3360 


3.52C 


368( 


384 ( 


400( 


it;r 


264( 


272; 


280." 


2SS> 


2;i7( 


:;o.".: 


:;i:;.- 


:;2ls 


:;30( 


3:;s: 


34(i5 


363C 


379.5 


.3<)i;( 


412." 


42! M 


44.5." 


4(;2( 


47,8." 


4!t50 


17( 


272( 


2S0." 


2S9( 


297." 


306f 


314.^: 


323f 


xnr 


3401 


348." 


3570 


374C 


391(1 


408( 


4250 


4420 


4590 


4761 


49;;( 


5100 


i7r 


280( 


■ISSi 


297r 


30<;: 


315t 


323^ 


332.' 


3413 


350r 


358!' 


3675 


385C 


402.5 


420f 


4375 


4550 


4725 


490( 


5075 


5250 


18C 


2S8f 


2970 306( 


31.5( 


324( 


:;:;3r 


:;42( 


:;5l( 


:!(;o( 


:;(;9f 


37S( 


39(;r 


414r 


4:!2f 


450( 


4(;s( 


4S(;( 


5041 


5220 


5400 


18- 


29(;( 


:j053;;i4f 


;i23> 


:{; i: ;( 


:!42: 


:;5i.r 


:!6n^ 


:;70( 


:;7!(; 


;i.ss." 


407( 


425." 


444( 


4(12." 


4S1( 


4!l!l." 


51S( 


536," 


5550 


19( 


3n4f 


3135 323()'332: 


;U2( 


;i51£ 


:;(;i( 


:;70." 


:;s(i( 


;;s!i.- 


399( 


41.S( 


4;;7( 


4.5(1( 


475( 


4!H( 


5i;;( 


.5;;2( 


5.510 


5700 


I!ir):;i2ii3'jis:::3i:.:;4i: 


:;.5i( 


;;(;(is 


:;7o." 


;iso; 


:;!io( 


399^ 


40! t." 


42! (f 


44s." 


4(1S( 


487." 


507( 


52(1C 


546( 


5C>or 


5850 


20(i|;;L'ii()|;;3i)iii:mK)l: ;:>()( 


'M ;( « 


:;7(i( 


:;so( 


39()( 


400( 


410f 


420( 


440( 


4(;of 


480( 


500( 


520( 


540f 


560C 


580(1 


6000 



21 



TABLE SHOWING RADIATION NECESSARY AT VARIOUS RATES 

per square foot of glass or wall surface. See explanatory note bottom I'age 27. 

CONTINUED ON FOLLOWING PAGES 



:3- 


RATE. 


< 


3 


3i 
li 


3J 


31 


4 
li 


44 

1 


5 

1 


6 


7 


8 


10 


15 


174 


20 


224 


25 


274 


30 


5 


H 






















6 




2 


li 


li 


1 


li 


1 


1 






















7 


n 


2i 


2 


2 


1 


li 


14 


1 


1 




















8 


n 


2J 


21 


2 


2 


1| 


14 


li 


1 


1 


















9 


3 


n 


24 


2A 


2i 


2 


li 


14 


1 


1 


1 
















10 


3i 


3 


2f 


2| 


24 


2i 


2 


11 


IJ 


li 


1 
















11 


33 


35 


3i 


3 


21 


24 


2i 


1| 


14 


14 


1 
















12 


4 


3J 


3J 


3i 


3 


2| 


24 


2 


13 


1* 


li 
















13 


4i 


4 


33 


3i 


3i 


3 


24 


2i 


IJ 


l| 


li 
















U 


4? 


4i 


4 


3i 


34 


3 


2} 


2i 


2 


1| 


14 
















15 


5 


43 


4J 


4 


31 


3i 


3 


24 


21 


2 


14 


1 


i 












16 


5J 


5 


4j 


a 


4 


34 


3i 


2} 


2i 


2 


1* 


1 














17 


r.3 


^A 


42 


4i 


3J 


34 


2} 


24 


2i 


1| 


li 














18 


6 


5J 


■'"'i 


4J 


4A 


4 


34 


3 


24 


2i 


li 


U 














19 


Ci 


6 


■".* 


5 


4| 


4i 


3i 


3i 


23 


24 


2 


li 














20 


6J 


6i 


f>4 


5J 


5 


44 


4 


3i 


23 


24 


2 


H 


li 












21 


7 


6^ 


6 


5J 


5i 


4| 


4i 


34 


3 


2J 


2 


14 


li 












22 


7| 


6J 


Gi 


6 


64 


5 


4i 


33 


3i 


23 


2i 


14 


li 












23 


7? 


7 


6i 


6i 


6i 


5 


44 


3} 


II 


3 


2i 


14 


li 


li 










24 


8 


'2 


4 


6J 


6 


5i 


4} 


4 


3 


24 


14 


li 












or, 


8.1 


73 


7i 


6J 


6i 


54 


5 


41 


34 


3i 


24 


li 


14 


li 










26 


8.? 


8* 


7J 


7 


64 


5| 


5i 


4i 


33 


3i 


2* 


1 


14 


li 


li 








27 


9 


8.1 


73 


7J 


6J 


C 


54 


44 


33 


34 


23 


1 


14 




li 








28 


9i 


8J 


8 


7i 


7 


^\ 


54 


43 


4 


34 


23 


1 


14 


14 


li 








29 


9J 


9 


8] 


7J 


7i 


^\ 


5| 


43 


4i 


3| 


3 


2 


i| 


14 


li 


li 




it 


ao 


10 


91 


8^ 


8 


74 


6| 


6 


5 


4i 


3| 


3 


2 


13 


14 


li 


\\ 






31 


10} 


9J 


8J 


8i 


71 


7 


6i 


5i 


44 


4 


3 


2 


13 


1* 


14 


li 


li 




32 


lOJ 


10 


9i 


84 


8 


7 


64 


5i 


4* 


4 


3i 


2i 


13 


14 


14 


li 


li 




33 


11 


lOi 


9I 


8J 


8i 


7i 


6A 


54 


43 


4i 


3i 


2i 
2i 


li 




14 


li 


li 




*t 


llj 


lOJ 


9J 


9 


84 


74 


6} 


53 


43 


4i 


34 


2 


li 


14 


li 


li 


li 


;k 


11? 


lOJ 


10 


91 


8| 


71 


7 


53 


5 


44 


34 


2i 


2 


If 


14 


14 


li 


li 


36 


12 


11 


lOi 


9i 


9 


8 


7i 


6 


5i 


44 


3* 


24 


2 


13 


14 


14 


li 


li 


37 


12i 


lU 


lOA 


9i 


^\ 


8i 


74 


6i 


5i 


4| 


33 


24 


2 


13 


13 


14 


li 


ij 


38 


12J 


Hi 


lOJ 


10 


94 


84 


74 


6i 


54 


43 


33 


24 


2i 




13 


14 


1* 


li 


39 


13* 


12 


Hi 


104 


9i 


8| 


7| 


64 


54 


5 


4 


24 


2i 


2 


li 


14 


14 


H 


40 


13J 


12i 


iii 


105 


10 


9 


8 


63 


53 


5 


4 


23 


2i 


2 


13 


14 


14 


li 


41 


13 J 




11* 


11 


lOi 


9 


8i 


63 


53 


5i 


4 


23 


2i 


2 


s 


13 


1* 


1 1 


42 


14 


I2I 


12 


11} 


lOJ 


9i 


84 


7 


6 


5i 


4i 


23 


2* 


2 


li 


13 


14 


1* 


43 


14i 


13 


12J 


111 


lOJ 


94 


84 


7i 


6i 


54 


4i 


2| 


24 


2i 


2 


13 


I5 


1 T 


44 


14| 


13i 


12^ 


llj 


11 


9| 


83 


7i 


6i 


54 


44 


3 


24 


2i 


2 


li 


14 


14 


45 


15 


13a 


12^ 


12 


Hi 


10 


9 


74 


64 


5| 


4* 


3 


24 


2i 


2 


i| 


11 


14 


46 


15i 


14i 


13i 


r.'i 


114 


lOi 


9i 


73 


6* 


53 


44 


3 




2i 


2 


13 


13 


14 


47 


15 J 


14i 


13i 


12i 


iij 


lOi 


9A 


73 


63 


6 


43 


3i 


23 


2i 


2 


2 


13 


1* 


48 


16 


14J 


131 


12J 


12 


lOi 


9J 


8 


63 


6 


43 


3i 


23 


24 


^t 


2 


13 


H 


49 


ir-i 


15 


14 


13 


12i 


11 


9| 


8i 


7 


6i 


5 


3i 


23 


24 


2i 


2 


li 


13 


50 


16i 


15i 


14i 


13i 


124 


11 


10 


8i 


7i 


6i 


5 


3i 


23 


2* 


2i 


2 


13 


li 


51 


17 


15| 


14i 


\n 


123 


Hi 


lOi 


8* 


7i 


C* 


5 


3* 


3 


24 


2i 


2 


13 




52 


17i 


16 


14 j 


14 


13 


lU 


lOi 


83 


74 


6* 


5i 


3* 


3 


24 


2i 


2 


2 


13 


53 


175 


16j 


15^ 


14i 


13i 


111 


loi 


83 


7* 


63 




3* 


3 


23 


2i 


2 


2 


13 


.54 


IS 


16^ 


15^ 


14^ 


134 


12 


10| 


9 


7| 


63 


54 


34 


3 


23 


24 


2i 


2 


li 


.55 
.56 


18J 
1«J 
19 
lOi 


17 . 

Ml 
17| 
18i 


151 

16 

16i 

16A 

16J 


141 
15 

151 


13| 


12i 


11 


9i 


7| 


7 


5* 


33 


3i 


23 


2* 


2i 


2 


Ij 


14 




Hi 


9i 


8 


7 


5* 


33 


3i 


23 


2* 


2i 


2 


li 


.58 
59 


14i 


12J 


lU 


9* 


8i 


7i 


5| 


33 


3i 


23 


24 


2i 


2 


2 


14.i 
14i 


13 
13 


lU 
111 


93 
93 


8i 
84 


7i 
74 


53 
6 


33 
4 


3i 
3i 


3 
3 


24 
24 


2i 


2i 


2 


CO 


20 


18^ 


17J 


16 


15 


13i 


12 


10 


8* 


7* 


6 


4 


34 


3 


23 


2* 


2i 


2 


61 


2()i 


18| 


17i 


JI^I 


15i 


13* 


12i 


lOi 


83 


-1 


6 


4 


34 


3 


23 


2* 


-5 


2 


62 


20:! 


19 


171 


164 


15I 


13| 


12.4 


io| 


83 


'? 


6i 


4i 


3* 


3 


23 


2* 


2i 


2 


63 


21 


19i 


18 


16| 


15| 


14 


12* 


10* 


9 


8 


6i 


4i 


3* 


3i 


23 


■'* 


2i 


9 


64 


2U 


19| 


18J 


17 


10 


14i 


12| 


io| 


9i 


8 


64 


4i 


3i 


3i 


23 


2I 


2i 


2i 


65 


21s 


20 


18^ 


17i 


16i 


14i 


13 


103 


9i 


8i 


6* 


4i 


33 


3i 


3 


24 


2i 


2i 

2i 


66 


22 


20^ 


18f 


171 


161 


14| 


13i 


11 


9* 


8i 


6* 


4* 


33 


3i 


3 


23 


2* 


67 

68 


22i 
223 


20| 
21 


19J 
19i 


18 
18i 


16| 
17 


15 
15 


13* 
13* 


Hi 
Hi 


9* 
9| 


84 


63 
63 


4.4 

4.4 


33 
4 


3i 
3* 


3 
3 


23 
23 


24 


2i 
2i 


69 


23 


2U 


19J 


184 


17i 


15i 


13| 


114 


n 


83 




4* 


4 


3* 


3 


23 


|i 


2i 



TABLE SHOWING RADIATION NECESSARY AT VARIOUS RATES 

per square foot of glass or wall surface. See explanatory note bottom Page 27. 

CONTINUED ON FOLLOWING PAGES 



i 
< 


RATE. 


3 


3i 


3* 
20 


3l 
19 


4 


H 


5 


6 


7 


8 


10 


15 


4 


20 


22J 


25 


27i 


30 


70 


23 


22 


18 


16 


14 


12 


10 


9 


5 


4 


3 


3 


3 


2 


71 


24 


22 


20 


19 


18 


16 


14 


12 


10 


9 


7 


5 


4 


4 


3 


3 


3 


2 


72 


24 


22 


21 


19 


18 


16 


14 


12 


10 


9 


7 


5 


4 


4 


3 


3 


3 


2 


73 


24 


23 


21 


20 


18 


16 


15 


12 


10 


9 


7 


5 


4 


4 


3 


3 


3 


2 


74 


25 


23 


21 


20 


19 


16 


15 


12 


11 


9 


7 


5 


4 


4 


3 


3 


3 


2 


75 


25 


23 


21 


20 


19 


17 


15 


13 


11 


9 


8 


5 


4 


4 


3 


3 


3 


3 


7G 


25 


24 




20 


19 


17 


15 


13 


11 


10 


8 


5 


4 


4 


3 


3 


3 


3 


77 


26 


24 


22 


21 


19 


17 


15 


13 


11 


10 


8 


5 


4 


4 


3 


3 


3 


3 


78 


26 


24 


22 


21 


20 


17 


16 


13 


11 


10 


8 


5 


4 


4 


3 


3 


3 


3 


79 


26 


24 


23 


21 


20 


18 


16 


13 


11 


10 


8 


5 


5 


4 


4 


3 


3 


3 


80 


27 


' 25 


23 


21 


20 


18 


16 


13 


11 


10 


8 


5 


5 


4 


4 


3 


3 


3 


81 


27 


25 


23 


22 


20 


18 


16 


14 


12 


10 


8 


5 


5 


4 


4 


3 


3 


3 


82 


27 


25 


24 


22 


21 


18 


16 


14 


12 


10 


8 


5 


5 


4 


4 


3 


3 


3 


83 


28 


26 


24 


22 


21 


18 


17 


14 


12 


10 


8 


6 


5 


4 


4 


3 


3 


3 


84 


28 


26 


24 


22 


21 


19 


17 


14 


12 


11 


8 


6 


5 


4 


4 


3 


3 


3 


85 


28 


26 


25 


23 


21 


19 


17 


14 


12 


11 


9 


6 


5 


4 


4 


3 


3 


3 


86 


29 


27 


25 


23 


22 


19 


17 


14 


12 


11 


9 


6 


5 


4 


4 


3 


3 


3 


87 


29 


27 


-5 


23 


22 


19 


17 


15 


12 


11 


9 


6 


5 


4 


4 


3 


3 


3 


88 


29 


27 


25 


24 


22 


20 


18 


15 


13 


11 


9 


6 


5 


4 


4 


4 


3 


3 


89 


30 


28 


25 


24 


22 


20 


18 


15 


13 


11 


9 


6 


5 


4 


4 


4 


3 


3 


90 


30 


28 


26 


24 


23 


20 


18 


15 


13 


11 


9 


6 


5 


5 


4 


4 


3 


3 


91 


30 


28 


26 


24 


23 


20 


18 


15 


13 


11 


9 


6 


5 


5 


4 


4 


3 


3 


92 


31 


29 


26 


25 
25 


23 


20 


18 


15 


13 


12 


9 


6 


5 


5 


4 


4 


3 


3 


93 


31 


29 


27 


23 


21 


19 


16 


13 


12 


9 


6 


5 


5 


4 


4 


3 


3 


94 


31 


29 


27 


25 


24 


21 


19 


16 


13 


12 


9 


6 


5 


5 


4 


4 


3 


3 


95 


32 


30 


27 


26 


24 


21 


19 


16 


14 


12 


10 


6 


5 


5 


4 


4 


3 


3 


96 


32 


30 


27 


26 


24 


21 


19 


16 


14 


12 


11) 





5 


5 


4 


4 


3 


3 


97 


32 


30 


28 


26 


24 


22 


19 


16 


14 


12 


10 


6 


6 


5 


4 


4 


4 


3 


98 


33 


30 


28 


26 


25 


22 


20 


16 


14 


12 


10 


7 


6 


5 


4 


4 


4 


3 


99 


33 


31 


28 


27 


25 


22 


20 


17 


14 


12 


10 


7 


6 


5 


4 


4 


4 


3 


KKI 


33 


31 


29 


27 


25 


22 


20 


17 


14 


13 


10 


7 


6 


5 


4 


4 


4 


3 


110 


37 


34 


31 


30 


28 


24 


22 


19 


15 


14 


11 


7 


6 


6 


5 


4 


4 


4 


120 


40 


37 


34 


32 


30 


27 


24 


20 


17 


16 


12 


» 8 


7 


6 


5 


5 


4 


4 


im 


43 


40 


37 


35 


33 


29 


26 


22 


19 


17 


13 


"~9 


7 


7 


6 


5 


5 


4 


140 


47 


43 


40 


38 


35 


31 


28 


24 


20 


18 


14 


9 


8 


" 


6 


6 


5 


5 


l.W 


,50 


46 


43 


40 


38 


33 


30 


25 


21 


19 


15 


10 


9 


8 


7 


6 


5 


5 


160 


53^ 


49 


46 


43 


40 


36 


32 


27 


23 


21 


16 


11 


9 


8 


7 


6 


6 


5 


170 




52 
56 


49 


46 

48 


43 


38 


34 


29 


24 


22 


17 


11 


10 


9 


8 


7 


6 


6 


180 


60 


51 


45 


40 


36 


30 


20 


23 


18 


12 


10 


9 


8 


7 


7 


6 


190 


63 


59 


.54 


51 


48 


42 


38 


32 


27 


24 


19 


13 


11 


10 


8 


8 


'' 


U 


200 


67 


62 
65 

68 
71 
74 


57 


54 


50 


44 


40 


34 


29 


25 


20 


13 


11 


10 


9 


8 


7 


7 


210 


70 


60 
63 
66 
69 


56 
59 

a. 

64 


53 


47 


42 


35 


30 


26 


21 


14 


12 


11 


9 


8 


8 


7 


220 


73 


55 


49 


44 


37 


31 


28 


22 


15 


13 


11 


10 


9 


8 


7 


2I:J0 




58 


51 


46 


39 


33 


29 


23 


15 


13 


12 


10 


9 


8 


8 


240 


80 


60 


53 


48 


40 


34 


30 


24 


16 


14 


12 


11 


10 


9 


8 


2.50 


83 


77 


71 


67 


63 


56 


50 


42 


36 


31 


25 


17 


14 


13 


11 


10 


9 


8 


260 


87 


80 


74 


70 


65 


58 


52 


44 


37 


33 


2(i 


17 


15 


13 


12 


10 


10 


9 


;!70 


90 


83 


77 


72 


68 


00 


54 


45 


39 


34 


27 


18 


15 


14 


12 


11 


10 


9 


280 


93 


86 


80 


75 


70 


C2 


56 


47 


40 


35 


28 


19 


16 


14 


12 


11 


10 


9 


290 


97 


89 


83 


77 


73 


04 


58 


48 


41 


36 


29 


19 


17 


15 


13 


12 


11 


10 


300 


100 


92 


86 


80 


75 


67 


00 


50 


43 


38 


30 


20 


17 


15 


13 


12 


11 


10 


310 


103 


95 


89 


83 


78 


69 


62 


52 


44 


39 


31 


21 


18 


16 


14 


12 


11 


10 


320 


107 


98 


91 


86 


80 


71 


(14 


53 


46 


40 


32 


21 


18 


16 


14 


13 


12 


11 


330 


110 


101 


94 


88 


83 


73 


60 


55 


47 


41 


33 


22 


19 


17 


15 


13 


12 


11 


340 


113 


104 


97 


91 


85 


76 


08 


57 


49 


43 


34 


23 


19 


17 


15 


14 


12 


11 


350 


117 


lOS 


100 


94 


88 


78 


70 


58 


50 


44 


35 


23 


20 


18 


16 


14 


13 


12 


360 


120 


111 


lo;'. 


97 


90 


80 


72 


CO 


51 


45 


30 


24 


21 


18 


16 


14 


13 


12 


370 


123 


114 


106 


99 


93 


82 


74 


62 


53 


46 


37 


25 


21 


19 


16 


15 


13 


12 


380 


127 


117 


109 


101 


95 


84 


76 


63 


54 


47 


38 


25 


22 


19 


17 


15 


14 


13 


390 


ViO 


120 


111 


104 


98 


87 


78 


C5 


56 


49 


39 


26 


22 


20 


17 


16 


14 


13 


400 


133 


123 


114 


107 


100 


89 


80 


67 


57 


50 


40 


27 


23 


20 


18 


16 


15 


13 


410 


137 


126 


117 


110 


103 


91 


82 


68 


59 


51 


41 


27 


23 


21 


18 


16 


15 


14 


420 


140 


139 


120 


112 


105 


93 


84 


70 


60 


52 


42 


28 


24 


21 


19 


17 


15 


14 


430 


143 


132 


123 


115 


108 


96 


86 


72 


61 


53 


43 


29 


25 


22 


19 


17 


16 


14 


440 


147 


.135 


126 


117 


110 


98 


88 


73 


63 


55 


44 


29 


25 


22 


20 


18 


16 


15 



TABLE SHOWING RADIATION NECESSARY AT VARIOUS RATES 

per square foot of glass or wall surface. See explanatory note bottom Page 27. 

OnNTINUED ON FOLLOWING PAGES 



*5 




















RATE. 
















s 
< 


3 
liiO 


3i 
139 


3^ 
129 


31 

120 


4 


4i 


5 


6 


7 


8 


10 


15 


17^ 


20 


22^ 


25 


27J 


30 


450 


113 


100 


90 


75 


64 


56 


45 


30 


26 


23 


20 


18 


16 


15 


46(1 


153 


142 


131 


123 


115 


102 


92 


77 


66 


58 


46 


31 


26 


23 


20 


18 


17 


15 


47(1 


ir)7 


145 


134 


125 


118 


104 


94 


78 


67 


59 


47 


31 


27 


24 


21 


19 


17 


16 


4S(l 


ICO 


148 


137 


128 


120 


107 


96 


80 


69 


60 


48 


32 


27 


24 


21 


19 


17 


16 


4'JO 


KB 


151 


140 


131 


123 


109 


98 


82 


70 


61 


49 


33 


28 


25 


22 


20 


18 


16 


50(1 


167 


154 


143 


133 


125 


111 


100 


83 


71 


63 


50 


33 


29 


25 


22 


20 


18 


17 


510 


170 


157 


146 


136 


128 


113 


102 


85 


73 


64 


51 


34 


29 


26 


23 


20 


18 


17 


520 


173 


160 


149 


139 


130 


116 


104 


87 


74 


65 


52 


35 


30 


26 


23 


21 


19 


17 


530 


177 


1(53 


151 


142 


133 


118 


106 


88 


76 


66 


53 


35 


30 


27 


24 


21 


19 


18 


54(J 


180 


167 


154 


145 


135 


120 


108 


90 


77 


68 


54 


36 


31 


27 


24 


22 


20 


18 


550 


183 


170 


157 


147 


138 


122 


110 


92 


79 


69 


55 


37 


31 


28 


24 


22 


20 


18 


5(MI 


187 


173 


160 


150 


140 


124 


112 


93 


80 


70 


56 


37 


32 


28 


25 


22 


20 


19 


570 


190 


176 


163 


153 


143 


127 


114 


95 


81 


71 


57 


38 


33 


29 


25 


23 


21 


19 


5S0 


193 


179 


166 


156 


145 


129 


116 


97 


83 


73 


58 


39 


33 


29 


26 


23 


21 


19 


5;io 


197 


182 


169 


158 


148 


131 


118 


98 


84 


74 


59 


39 


34 


30 


26 


24 


21 


20 


COO 


200 


185 


171 


160 


150 


133 


120 


100 


•86 


75 


60 


40 


34 


30 


27 


24 


22 


20 


610 


2(13 


188 


174 


163 


153 


136 


122 


102 


87 


76 


61 


41 


35 


31 


27 


24 


22 


20 


6'20 


207 


191 


177 


166 


155 


138 


124 


103 


89 


78 


62 


41 


35 


31 


28 


25 


22 


21 


630 


210 


194 


180 


168 


158 


140 


126 


105 


90 


79 


63 


42 


36 


32 


28 


25 


23 


21 


640 


213 


197 


183 


171 


160 


142 


128 


107 


91 


80 


64 


43 


37 


32 


28 


26 


23 


21 


650 


217 


200 


186 


174 


163 


144 


130 


108 


93 


81 


65 


43 


37 


33 


29 


26 


24 


22 


660 


220 


203 


189 


177 


165 


147 


132 


110 


94 


83 


66 


44 


38 


33 


29 


26 


24 


22 


670 


223 


206 


192 


180 


168 


149 


134 


112 


96 


84 


67 


45 


38 


34 


30 


27 


24 


22 


680 


227 


209 


195 


182 


170 


151 


136 


113 


97 


85 


68 


45 


39 


34 


30 


27 


25 


23 


690 


230 


212 


198 


184 


173 


153 


138 


115 


99 


86 


69 


46 


39 


35 


31 


28 


25 


23 


7(MI 


233 


215 


200 


187 


175 


156 


140 


117 


100 


88 


70 


47 


40 


35 


31 


28 


25 


23 


71(1 


237 


218 


203 


190 


178 


158 


142 


118 


101 


89 


71 


47 


41 


36 


32 


28 


26 


24 


72(1 


240 


221 


206 


192 


180 


160 


144 


120 


103 


90 


72 


48 


41 


36 


32 


29 


26 


24 


73(1 


243 


224 


209 


195 


183 


162 


146 


122 


104 


91 


73 


49 


42 


37 


32 


29 


26 


24 


74(1 


247 


227 


211 


198 


185 


164 


148 


123 


106 


93 


74 


49 


42 


37 


33 


30 


27 


25 


7r>o 


jr.o 


231 


214 


200 


188 


167 


150 


125 


107 


94 


75 


50 


43 


38 


33 


30 


27 


25 


7(ai 


253 


234 


217 


203 


190 


169 


152 


127 


109 


95 


76 


51 


43 


38 


34 


30 


28 


25 


770 


257 


237 


220 


206 


193 


171 


154 


128 


110 


96 


77 


51 


44 


39 


34 


31 


28 


26 


7!S(l 


2(10 


240 


223 


209 


195 


173 


156 


130 


111 


98 


78 


52 


45 


39 


35 


31 


28 


26 


7'J(i 


203 


243 


226 


211 


198 


176 


158 


132 


113 


99 


79 


53 


45 


40 


35 


32 


29 


26 


800 


267 


246 


229 


214 


200 


178 


160 


133 


114 


100 


80 


53 


46 


40 


36 


32 


29 


27 


810 


270 


249 


231 


217 


203 


180 


162 


135 


116 


1111 


81 


54 


46 


41 


36 


32 


29 


27 


820 


273 


252 


234 


220 


205 


182 


164 


137 


117 


103 


82 


55 


47 


41 


36 


33 


30 


27 


8130 


277 


255 


237 


223 


208 


184 


106 


138 


119 


104 


83 


55 


47 


42 


37 


33 


30 


28 


840 


280 


258 


240 


225 


210 


187 


168 


140 


120 


105 


84 


56 


48 


42 


37 


34 


30 


28 


Sfid 


2S.', 


21 12 


243 


227 


213 


189 


170 


142 


121 


106 


85 


57 


49 


43 


38 


34 


31 


28 


mi 


'_'S7 


•Jd.". 


246 


230 


215 


191 


172 


143 


123 


108 


86 


57 


49 


43 


38 


34 


31 


29 


87(1 


2; 1(1 


2(18 


249 


232 


218 


193 


174 


145 


124 


109 


87 


58 


50 


44 


39 


35 


32 


29 


880 


293 


271 


251 


235 


220 


196 


176 


147 


126 


110 


88 


59 


50 


44 


39 


35 


32 


29 


890 


297 


274 


254 


238 


223 


198 


178 


148 


127 


111 


89 


59 


51 


45 


40 


36 


32 


30 


900 


300 


277 


257 


240 


225 


200 


180 


150 


129 


113 


90 


60 


51 


45 


40 


36 


33 


30 


910 


m:i 


280 


260 


243 


228 


202 


182 


152 


130 


114 


91 


61 


52 


46 


40 


36 


33 


30 


920 


307 


283 


263 


246 


230 


204 


184 


153 


131 


115 


92 


61 


53 


46 


41 


37 


33 


31 


930 


310 


286 


266 


249 


233 


207 


186 


155 


las 


116 


93 


62 


53 


47 


41 


37 


34 


31 


940 


313 


289 


269 


251 


235 


209 


188 


157 


134 


118 


04 


63 


54 


47 


42 


38 


34 


31 


950 


317 


293 


271 


254 


238 


211 


190 


158 


136 


119 


95 


63 


&4 


48 


42 


38 


34 


32 


96U 


320 


25)6 


274 


257 


240 


213 


192 


160 


137 


120 


96 


64 


55 


48 


43 


38 


35 


32 


970 


323 


299 


277 


260 


243 


216 


194 


162 


139 


121 


97 


65 


55 


49 


43 


39 


35 


32 


980 


327 


302 


280 


262 


2'iO 


218 


196 


163 


140 


123 


98 


65 


56 


49 


44 


39 


36 


33 


990 


330 


305 


283 


265 


248 


220 


198 


165 


141 


124 


99 


66 


57 


50 


44 


40 


36 


33 


1000 


333 


308 


280 


268 


250 


202 


200 


167 


143 


125 


100 


67 


57 


50 


44 


40 


36 


33 


102(1 


340 


314 


291 


272 


255 


227 


204 


170 


146 


128 


102 


68 


58 


51 


45 


41 


37 


34 


1040 


347 


320 


297 


277 


200 


231 


208 


173 


149 


130 


104 


69 


59 


52 


46 


42 


38 


35 


1060 


353 


326 


303 


283 


265 


236 


212 


177 


152 


133 


106 


71 


61 


53 


47 


42 


39 


35 


1080 


360 


332 


309 


288 


270 


240 


216 


180 


154 


135 


108 


72 


62 


54 


48 


43 


39 


36 


1100 


367 


338 


314 


293 


275 


244 


220 


183 


157 


138 


110 


73 


63 


55 


49 


44 


40 


37 


1120 


373 


344 


320 


299 


280 


249 


224 


187 


160 


140 


112 


75 


64 


56 


50 


45 


41 


37 


1140 


380 


351 


326 


304 


285 


253 


228 


190 


163 


143 


114 


76 


65 


57 


51 


46 


42 


38 


116(1 


387 


357 


331 


309 


290 


258 


232 


193 


166 


145 


116 


77 


66 


58 


52 


46 


42 


39 


1180 


303 


363 


337 


315 


295 


292 


236 


197 


169 


148 


118 


79 


67 


59 


52 


47 


43 


39 



TABLE SHOWING RADIATION NECESSARY AT VARIOUS RATES 

per square foot of glass or wall surface. See explanatory note bottom Page 27. 

CONTINUED ON FOLLOWING PAGES 



^ 


RATE. 


3 
<1 


3 


3i 
370 


3J 

343 


31 


4 

300 


4* 
267 


5 
240 


6 


7 
171 


8 


10 
120 


15 


17i 


20 


22* 


25 


27^ 


30 


1200 


400 


320 


200 


150 


80 


69 


60 


53 


48 


44 


40 


1220 


407 


376 


349 


326 


305 


271 


244 


203 


174 


153 


122 


81 


70 


61 


54 


49 


44 


41 


124( 


413 


381 


354 


330 


310 


276 


248 


207 


177 


155 


124 


83 


71 


62 


55 


50 


45 


41 


12i;( 


420 


388 


360 


336 


315 


280 


252 


210 


180 


1.58 


126 


84 


72 


63 


56 


50 


46 


42 


1280 


427 


394 


366 


342 


320 


284 


256 


213 


183 


160 


128 


85 


73 


64 


57 


51 


47 


43 


130f 


433 


400 


371 


347 


325 


289 


260 


217 


186 


163 


130 


87 


74 


65 


58 


52 


47 


43 


1320 


440 


406 


377 


352 


330 


293 


264 


220 


189 


165 


132 


88 


75 


66 


59 


53 


48 


44 


1340 


447 


412 


383 


357 


335 


298 


268 


2-.'3 


191 


168 


134 


89 


77 


67 


60 


54 


49 


45 


1360 


453 


418 


389 


363 


340 


302 


272 


227 


194 


170 


136 


91 


78 


68 


60 


54 


49 


45 


1380 


460 


424 


394 


368 


345 


307 


276 


230 


197 


173 


138 


92 


79 


69 


61 


55 


50 


46 


1400 


467 


430 


400 


374 


350 


311 


280 


233 


200 


175 


140 


93 


80 


70 


62 


56 


51 


47 


1420 


473 


436 


406 


379 


355 


316 


284 


237 


203 


178 


142 


95 


81 


71 


63 


57 


52 


47 


1440 


480 


442 


411 


384 


360 


320 


288 


240 


206 


180 


144 


96 


82 


72 


64 


58 


52 


48 


1400 


487 


448 


417 


389 


365 


324 


292 


243 


209 


183 


146 


97 


83 


73 


65 


58 


53 


49 


1480 


493 


455 


423 


394 


370 


329 


290 


247 


211 


185 


148 


99 


85 


74 


66 


59 


54 


49 


1500 


500 


461 


429 


400 


375 


333 


300 


250 


214 


188 


1.50 


100 


86 


75 


67 


60 


55 


50 


1520 


507 


4G8 


434 


406 


380 


338 


304 


2.53 


217 


190 


152 


101 


87 


76 


68 


61 


55 


51 


1540 


513 


474 


440 


411 


385 


342 


308 


257 


220 


193 


154 


103 


88 


77 


68 


62 


56 


51 


1560 


520 


480 


446 


416 


390 


347 


312 


260 


223 


195 


156 


104 


89 


78 


69 


62 


57 


52 


1580 


527 


486 


451 


421 


395 


351 


316 


263 


226 


198 


158 


105 


90 


79 


70 


63 


57 


53 


1600 


533 


492 


457 


427 


400 


356 


.320 


267 


229 


200 


160 


107 


91 


80 


71 


64 


58 


53 


1620 


540 


498 


463 


432 


405 


360 


324 


270 


231 


203 


162 


108 


93 


81 


72 


65 


59 


54 


1640 


547 


504 


469 


437 


410 


364 


328 


273 


234 


205 


164 


109 


94 


82 


73 


66 


60 


55 


1060 


5.54 


510 


474 


443 


415 


369 


332 


277 


237 


208 


166 


111 


95 


83 


74 


66 


60 


55 


1680 


560 


516 


480 


448 


420 


373 


336 


280 


240 


210 


168 


112 


96 


84 


75 


67 


61 


56 


1700 


567 


522 


486 


453 


425 


378 


340 


283 


243 


213 


170 


113 


97 


.85 


76 


68 


62 


57 


1720 


573 


529 


491 


459 


430 


382 


.344 


287 


246 


215 


172 


115 


98 


86 


76 


69 


63 


57 


1740 


.580 


535 


497 


464 


435 


387 


348 


290 


249 


218 


174 


116 


99 


87 


77 


70 


63 


58 


1760 


.587 


.541 


503 


470 


440 


391 


352 


293 


251 


220 


176 


117 


101 


88 


78 


70 


64 


59 


1780 


593 


547 


509 


475 


445 


396 


356 


297 


254 


223 


178 


119 


102 


89 


79 


71 


65 


59 


1800 


600 


553 


514 


480 


450 


400 


360 


300 


257 


225 


180 


120 


103 


90 


80 


72 


65 


60 


1820 


607 


559 


520 


486 


4.55 


404 


364 


303 


260 


228 


182 


121 


104 


91 


81 


73 


66 


01 


1840 


613 


5^5 


526 


491 


460 


4(19 


308 


307 


263 


230 


184 


123 


105 


92 


82 


74 


67 


61 


1860 


620 


572 


531 


496 


465 


413 


372 


310 


266 


233 


186 


124 


106 


93 


83 


74 


68 


62 


1880 


627 


578 


537 


502 


470 


418 


376 


313 


269 


235 


188 


125 


107 


94 


84 


75 


68 


63 


1900 


033 


584 


543 


507 


475 


422 


380 


317 


271 


238 


190 


127 


109 


95 


84 


76 


69 


63 


1920 


()40 


590 


o49 


512 


480 


427 


384 


320 


274 


240 


192 


128 


110 


96 


85 


77 


70 


64 


1940 


047 


■596 


554 


518 


485 


431 


388 


323 


277 


243 


194 


129 


111 


97 


86 


78 


71 


65 


19(;o 


(153 


603 


560 


.523 


490 


436 


392 


327 


280 


245 


196 


131 


112 


98 


87 


78 


71 


65 


1980 


660 


609 


566 


528 


495 


440 


396 


330 


283 


248 


198 


132 


113 


99 


88 


79 


72 


66 


2000 


607 


615 


571 


534 


500 


444 


400 


333 


286 


250 


200 


133 


114 


100 


89 


80 


73 


67 


2020 


673 


621 


577 


539 


505 


449 


404 


337 


289 


253 


202 


1.35 


115 


101 


90 


81 


73 


67 


2040 


680 


628 


583 


,544 


.510 


453 


408 


340 


291 


2.55 


204 


136 


117 


102 


91 


82 


74 


68 


2060 


687 


634 


589 


550 


515 


458 


412 


.343 


294 


258 


206 


137 


118 


103 


92 


82 


. 75 


69 


2080 


693 


640 


594 


555 


520 


462 


416 


347 


297 


260 


208 


139 


119 


104 


92 


83 


76 


69 


2100 
2120 
2140 


700 


646 


600 


560 


525 


4«7 


420 


350 


300 


263 


210 


140 


120 


105 


93 


84 


76 


70 


707 


652 


606 


565 


530 


471 


424 


353 


303 


265 


212 


141 


121 


106 


94 


85 


77 


71 


713 


658 


611 


571 


535 


476 


428 


357 


.306 


268 


214 


143 


122 


107 


95 


86 


78 


71 


2100 
2180 


720 


6(54 


617 


576 


540 


480 


432 


360 


309 


270 


216 


144 


123 


108 


96 


86 


79 


72 


727 


670 


623 


582 


545 


484 


436 


363 


311 


273 


218 


145 


125 


109 


97 


87 


79 


73 


2200 


733 


676 


629 


587 






























2220 


740 


682 


634 


593 


550 


489 


440 


367 


314 


275 


220 


147 


126 


110 


98 


88 


80 


73 


2240 


747 


688 


640 


.598 
603 
608 


5.55 


493 


444 


370 


317 


278 


222 


148 


127 


111 


99 


89 


81 


74 


2200 


7.53 


695 


646 


560 


498 


448 


373 


320 


280 


224 


149 


128 


112 


100 


90 


81 


75 


2280 


760 


701 


651 


565 


502 


452 


377 


323 


283 


226 


151 


129 


113 


100 


90 


82 


75 












570 


507 


456 


380 


326 


285 


228 


152 


130 


114 


101 


91 


83 


76 


2300 
2320 
2340 
2360 

2380 


767 
773 

780 
787 
793 


708 
714 
720 


657 
663 
669 
674 
080 


613 
619 


575 


511 


460 


383 


329 


288 


230 


153 


131 


115 


102 


92 


84 


77 


580 


516 


464 


387 


331 


290 


232 


155 


133 


116 


10,3 


93 


84 


77 


624 


585 


520 


408 


390 


3.34 


293 


234 


1.56 


134 


117 


104 


94 


85 


78 


726 
732 


630 


590 


524 


472 


393 


337 


295 


236 


157 


1.35 


118 


105 


94 


86 


79 


635 


595 


529 


476 


397 


340 


298 


238 


159 


136 


119 


106 


95 


87 


79 


2400 


800 


738 


686 


640 


600 


533 


480 


400 


.343 


300 


240 


160 


1.37 


120 


107 


96 


87 


80 


2420 


807 


744 


691 


646 


605 


538 


484 


403 


346 


303 


242 


161 


138 


121 


108 


97 


88 


81 


2440 


813 


irM 


697 


651 


610 


542 


488 


407 


349 


305 


244 


163 


139 


122 


108 


98 


89 


81 


2460 


820 


758 


703 


656 


615 


547 


492 


410 


351 


308 


246 


164 


141 


123 


109 


98 


89 


82 


2480| 827 


764 


709 


662 


620 


551 


496 


413 


354 


310 


248 


l(i5 


142 


124 


110 


99 


90 


83 



TABLE SHOWING RADIATION NECESSARY AT VARIOUS RATES 

per square foot of ghiss or wall surface. See explanatory note bottom Page 27. 

CONTINUED ON FOLLOWING PAGES' 



*s 




















RATE. 
















1 


3 


3i 


^ 


31 


4 


4^ 
556 


5 

500 


6 


7 


8 


10 


15 


17J 


20 


22^ 


25 


27A 


30 


2r)0€ 


833 


770 


714 


666 


625 


417 


357 


313 


250 


167 


143 


125 


111 


100 


91 


83 


2r>20 


840 


776 


720 


672 


630 


560 


504 


420 


360 


315 


252 


168 


144 


126 


112 


101 


92 


84 


2541 


847 


782 


726 


678 


635 


564 


508 


423 


363 


318 


254 


169 


145 


127 


113 


102 


92 


85 


2.'')»)(; 


853 


788 


731 


684 


640 


569 


512 


427 


366 


320 


256 


171 


146 


128 


114 


102 


93 


85 


258(1 


8(30 


794 


737 


689 


645 


573 


516 


430 


369 


323 


258 


172 


147 


129 


115 


103 


94 


86 


2600 


807 


800 


743 


694 


6.50 


578 


520 


433 


371 


325 


260 


173 


149 


130 


116 


104 


95 


87 


262(1 


873 


806 


749 


699 


655 


582 


524 


437 


374 


328 


262 


175 


150 


131 


116 


105 


95 


87 


2640 


880 


812 


7.54 


704 


660 


587 


528 


440 


.377 


330 


264 


176 


151 


132 


117 


106 


96 


88 


26(50 


887 


818 


760 


709 


665 


591 


532 


443 


.380 


:«3 


266 


177 


1.52 


i:i3 


118 


106 


97 


89 


2680 


893 


824 


766 


715 


670 


596 


536 


447 


383 


335 


268 


179 


153 


134 


119 


107 


97 


89 


2700 


900 


8.32 


771 


720 


675 


600 


540 


450 


386 


338 


270 


180 


1.54 


1.35 


120 


108 


98 


90 


2720 


907 


838 


777 


725 


680 


(j(t4 


.^.44 


4.33 


389 


340 


272 


181 


1.55 


136 


121 


109 


99 


91 


2740 


913 


844 


783 


731 


685 


(109 


548 


457 


391 


343 


274 


183 


157 


137 


122 


110 


100 


91 


2760 


920 


8.50 


789 


736 


690 


613 


5,52 


460 


394 


345 


276 


184 


1.58 


138 


123 


110 


100 


92 


2780 


927 


856 


794 


742 


695 


618 


556 


463 


397 


348 


278 


185 


159 


139 


124 


111 


101 


93 


2800 


933 


862 


800 


747 


700 


022 


.560 


467 


400 


350 


280 


187 


160 


140 


124 


112 


102 


93 


2820 


940 


808 


806 


752 


705 


627 


.564 


470 


403 


353 


282 


188 


101 


141 


125 


113 


103 


94 


2840 


947 


874 


811 


757 


710 


631 


5(;8 1 473 


406 


3,55 


284 


189 


162 


142 


126 


114 


103 


95 


2860 


9.53 


880 


817 


763 


715 


636 


572 


477 


409 


3.58 


286 


191 


1(J3 


143 


127 


114 


104 


95 


2880 


960 


886 


823 


768 


720 


640 


570 


480 


411 


300 


288 


192 


165 


144 


128 


115 


105 


96 


2900 


967 


893 


829 


773 


725 


044 


580 


483 


414 


363 


290 


193 


166 


145 


129 


116 


105 


97 


2i)20 


973 


899 


834 


778 


730 


64; 1 


584 


487 


417 


365 


292 


195 


167 


146 


130 


117 


106 


97 


2940 


980 


905 


840 


784 


735 


6,5.-t 


588 


490 


420 


368 


294 


196 


168 


147 


131 


118 


107 


98 


2960 


987 


911 


846 


789 


740 


65s 


5; 12 


493 


423 


370 


296 


197 


169 


148 


132 


118 


108 


99 


2980 


993 


917 


851 


795 


745 


662 


5;»6 


497 


426 


373 


298 


199 


170 


149 


132 


119 


108 


99 


:«I0<) 


1000 


923 


857 


800 


750 


C67 


(100 


500 


429 


375 


300 


200 


171 


1.50 


133 


120 


109 


100 


■Mm 


1017 


939 


871 


813 


763 


678 


610 


508 


436 


381 


305 


203 


174 


153 


1.36 


122 


111 


102 


■Sim 


1033 


954 


886 


826 


775 


689 


620 


.517 


443 


3S8 


310 


207 


177 


155 


138 


124 


113 


103 


3150 


1050 


970 


oai 


840 


788 


700 


6.30 


525 


450 


394 


315 


210 


180 


158 


140 


126 


115 


105 


3200 


1067 


985 


914 


853 


800 


711 


640 


533 


457 


400 


320 


213 


183 


160 


142 


128 


116 


107 


3250 


1083 


um 


929 


867 


813 


722 


650 


542 


464 


406 


.325 


217 


186 


163 


144 


130 


118 


108 


3300 


11(M» 


1015 


943 


880 


825 


73.3 


660 


550 


471 


412 


330 


220 


189 


165 


147 


132 


120 


110 


3;',r.ii 


1117 


lo.iO 


957 


893 


838 


744 


670 558 


479 


419 


335 


223 


191 


168 


149 


1.34 


122 


112 


3400 


n.;:; 


1045 


971 


907 


a50 


756 


680 


567 


486 


425 


340 


227 


194 


170 


151 


136 


124 


113 


34rAl 


1150 


1060 


986 


920 


863 


767 


690 


575 


493 


431 


345 


230 


197 


173 


153 


138 


125 


115 


3500 


1167 


1076 


1000 


933 


875 


778 


700 


583 


500 


438 


350 


233 


200 


175 


156 


140 


127 


117 


355(1 


1183 


1092 


1014 


947 


888 


789 


710 


592 


507 


444 


.3.55 


237 


203 


178 


158 


142 


129 


118 


3(>(X) 


12(K) 


1107 


1029 


960 


900 


800 


720 


600 


514 


450 


.■;(;i) 


240 


206 


180 


160 


144 


131 


120 


3650 


1217 


1123 


1(U3 


973 


913 


811 


730 


608 


521 


4.56 


305 


24.3 


209 


183 


162 


146 


133 


122 


3700 


1233 


1138 


1057 


987 


925 


822 


740 


617 


529 


462 


370 


247 


211 


185 


164 


148 


135 


123 


3750 


12.50 


1153 


1071 


1000 


938 


833 


750 


625 


536 


469 


375 


250 


214 


188 


167 


150 


136 


125 


3800 


1267 


1170 


1086 


1013 


9.50 


841 


760 


633 


543 


475 


380 


2.53 


217 


19) 


169 


1.52 


138 


127 


3850 


12s:i 


1185 


1100 


1026 


963 


856 


770 


642 


550 


481 


385 


257 


220 


193 


171 


154 


140 


128 


39(MI 


i:;(ii» 


1200 


1114 


1040 


975 


867 


780 


050 


557 


488 


390 


260 


223 


195 


173 


156 


142 


130 


3950 


1317 


1215 


1129 


1053 


988 


878 


790 


658 


564 


494 


395 


263 


226 


198 


176 


1.58 


144 


132 


4000 


1333 


1231 


1143 


1067 


lono 


889 


800 


667 


571 


500 


400 


267 


229 


200 


178 


160 


145 


133 


4050 


13.50 


124(! 


1157 


1080 


1013 


900 


810 


675 


579 


506 


405 


270 


231 


203 


180 


162 


147 


135 


4100 


13()7 


1261 


1171 


1093 


1025 


911 


820 


683 


586 


512 


410 


273 


234 


205 


1.82 


164 


149 


137 


4150 


1383 


1277 


1186 


1107 


1038 


922 


830 


692 


593 


519 


415 


277 


237 


208 


184 


166 


151 


138 


4200 


1400 


1292 


1200 


1120 


1050 


933 


840 


700 


600 


525 


420 


280 


240 


210 


187 


108 


153 


140 


4250 
4300 
4350 


1417 
1433 
1450 


1308 
1323 
1338 


1214 

1229 


11.33 
1146 
1160 
1173 
1186 


1063 


944 


850 


70S 


607 


531 


425 


283 


243 


213 


189 


170 


155 


142 


1''43 


1075 


956 


8(;o 


717 


614 


538 


430 


287 


246 


215 


191 


172 


1.56 


143 


4400 
4450 


1467 
1483 


1353 
1370 


1257 
1271 


1088 


9(i7 


870 


725 


621 


544 


435 


290 


249 


218 


193 


174 


158 


145 


1100 


978 


880 


733 


629 


550 


440 


293 


251 


220 


196 


176 


160 


147 


1113 


989 


890 


742 


636 


556 


445 


297 


2.54 


223 


198 


178 


162 


148 


4500 


1500 


1385 


1286 


1200 


1125 


1000 


900 


750 


643 


5C2 


450 


300 


257 


225 


200 


180 


164 


150 


4.551 1 
4600 


1517 


1400 


l.'.OO 


1213 


1138 


1011 


910 


758 


650 


569 


455 


303 


260 


228 


202 


182 


165 


152 


15:):! 


1415 


1314 


1227 


11.50 


1022 


920 


767 


657 


575 


400 


307 


263 


230 


204 


184 


167 


153 


4650 


15.50 


14:j(J 


1329 


1240 


1163 


103:( 


930 


775 


664 


581 


465 


310 


266 


233 


207 


186 


169 


155 


4700 


1507 


1445 


1343 


12.53 


1175 


1044 


940 


783 


671 


588 


470 


313 


269 


235 


209 


188 


171 


157 


4750 


1583 


1461 


1357 


1267 


1188 


10.56 


950 


792 


679 


594 


475 


317 


271 


238 


211 


190 


173 


158 


4S011 


llJOo 


147(1 


1371 


1280 


1200 


1067 


960 


800 


686 


600 


4.S0 


320 


274 


240 


213 


192 


175 


160 


48i"ill 


ii;i7 


14; 12 


1386 


1293 


1213 


1078 


970 


808 


693 


606 


485 


323 


277 


243 


216 


194 


176 


162 


4900 


1033 


1508 


14<HI 


1307 


1225 


1089 


980 


817 


700 


612 


490 


327 


280 


245 


218 


196 


178 


163 


4950 


1650 


1.523 


1414 


1320 


1238 


1100 


990 


825 


707 


619 


495 


330 


283 


248 


220 


198 


180 


165 



26 



TABLE SHOWING RADIATION NECESSARY AT VARIOUS RATES 

per square foot of glass or wall surface. See explanatory note bottom Page 27. 



1 


















RATE 


, 














3 


3i 


3J 


4 


a 


5 


6 


7 


8 


10 


15 


174 
286 


20 


224 
222 


25 


274 


30 


5000 


1667 


1540 


1429 


1250 


1111 


1000 


833 


714 


625 


500 


333 


250 


200 


182 


167 


mm 


1683 


1554 


1443 


1263 


1122 


1010 


842 


721 


631 


505 


337 


289 


253 


224 


202 


184 


168 


510(1 


1700 


1570 


1457 


1275 


1133 


1020 


850 


729 


638 


510 


340 


291 


2.55 


227 


204 


185 


170 


515(1 


1717 


1.585 


1471 


1288 


1144 


1030 


858 


736 


644 


515 


343 


294 


258 


229 


206 


187 


172 


520C 


1733 


1600 


1486 


1300 


1156 


1040 


867 


743 


650 


520 


347 


297 


260 


231 


208 


189 


173 


5250 


1750 


1615 


1500 


1313 


1167 


1050 


875 


750 


656 


525 


350 


300 


263 


233 


210 


191 


175 


5300 


1767 


1630 


1514 


1325 


1178 


1060 


883 


757 


6(i3 


530 


353 


303 


265 


2.36 


212 


193 


177 


5350 


1783 


1645 


1529 


1338 


1189 


1070 


892 


764 


669 


535 


357 


306 


268 


238 


214 


195 


178 


5400 


1800 


1661 


1543 


1350 


1200 


1080 


900 


771 


675 


540 


360 


309 


270 


240 


210 


196 


180 


5450 


1817 


1677 


1557 


1363 


1211 


1090 


908 


779 


681 


545 


363 


311 


273 


242 


218 


198 


182 


5500 


1833 


1693 


1571 


1375 


1222 


1100 


917 


786 


688 


550 


367 


314 


275 


244 


220 


200 


183 


5550 


18.W 


1708 


1586 


1388 


1233 


1110 


925 


793 


694 


555 


370 


317 


278 


247 


222 


202 


185 


5ti00 


1867 


1724 


IGOO 


1401) 


1244 


1120 


933 


800 


700 


560 


373 


320 


280 


249 


224 


204 


187 


5(350 


1883 


1739 


1014 


1413 


1256 


1130 


942 


807 


706 


5(i5 


377 


323 


283 


251 


226 


205 


188 


5700 


1900 


1755 


162'J 


1425 


1267 


1140 


950 


814 


713 


570 


380 


326 


285 


253 


228 


207 


190 


5750 


1917 


1770 


1643 


1438 


1278 


1150 


958 


821 


719 


575 


383 


329 


288 


256 


230 


209 


192 


5800 


1933 


1785 


1657 


1450 


1289 


1160 


967 


829 


725 


580 


387 


331 


290 


258 


232 


211 


193 


58.50 


1950 


1800 


1671 


1463 


1300 


1170 


975 


836 


731 


585 


390 


3.34 


293 


260 


234 


213 


195 


5900 


1967 


1815 


1686 


1475 


1311 


1180 


983 


843 


738 


590 


393 


337 


295 


262 


236 


215 


197 


5950 


1983 


1830 


1700 


1488 


1322 


1190 


992 


850 


744 


595 


397 


340 


298 


264 


238 


216 


198 


6000 


2000 


1846 


1714 


1.50n 


1333 


1200 


inoo 


857 


750 


600 


400 


.343 


300 


267 


240 


218 


200 


6050 


2017 


1861 


1729 


1513 


1344 


1210 


1008 


864 


756 


605 


403 


346 


303 


269 


242 


220 


202 


6100 


2033 


1876 


1743 


1525 


1356 


1220 


1017 


871 


763 


610 


407 


349 


305 


271 


244 


222 


203 


6150 


2050 


1892 


1757 


1538 


1367 


1230 


1025 


879 


769 


615 


410 


351 


308 


273 


246 


224 


205 


6200 


2067 


1908 


1771 


1550 


1378 


1240 


1033 


886 


775 


620 


413 


354 


310 


276 


248 


225 


207 


6250 


2083 


1924 


1786 


1563 


1389 


1250 


1042 


893 


781 


625 


417 


357 


313 


278 


250 


227 


208 


6300 


2100 


1939 


1800 


1575 


1400 


1260 


1050 


900 


788 


630 


420 


360 


315 


280 


252 


229 


210 


6350 


2117 


1954 


1814 


1588 


1411 


1270 


1058 


907 


794 


635 


423 


363 


318 


282 


254 


231 


212 


6400 


2133 


1970 


1829 


1600 


1422 


1280 


1067 


914 


800 


640 


427 


366 


320 


284 


256 


233 


213 


6450 


2150 


1985 


1843 


1613 


1433 


1290 


1075 


921 


806 


645 


430 


369 


323 


287 


258 


235 


215 


6500 


2167 


2000 


1857 


1625 


1441 


1300 


1083 


929 


813 


650 


433 


371 


325 


289 


260 


236 


217 


6550 


2183 


2015 


1871 


1638 


1456 


1310 


1092 


936 


819 


655 


437 


374 


328 


291 


262 


238 


218 


6600 


2200 


2030 


1886 


1650 


1467 


1320 


1100 


943 


825 


660 


440 


377 


330 


293 


264 


240 


220 


6050 


2217 


2045 


1900 


1663 


1478 


1330 


1108 


950 


831 


665 


443 


380 


333 


296 


266 


242 


222 


6700 


2233 


2061 


1914 


1675 


1489 


1340 


1117 


957 


838 


670 


447 


383 


335 


298 


268 


244 


223 


6750 


22.50 


2077 


1929 


1688 


1500 


1350 


1125 


964 


844 


675 


450 


386 


338 


300 


270 


245 


225 


(;8(K) 


2267 


2092 


1943 


1700 


1511 


1300 


1133 


971 


850 


680 


453 


389 


340 


302 


272 


247 


227 


0850 


2283 


2108 


1957 


1713 


1522 


1370 


1142 


979 


856 


685 


457 


391 


343 


304 


274 


249 


228 


6900 


2300 


2123 


1971 


1725 


1533 


1380 


1150 


986 


863 


690 


460 


394 


345 


307 


276 


251 


230 


6950 


2317 


2139 


1986 


1738 


1544 


1390 


1158 


993 


869 


695 


463 


397 


348 


309 


278 


253 


232 


7000 


2333 


2154 


2000 


1750 


1550 


1400 


1167 


1000 


875 


700 


467 


400 


350 


311 


280 


255 


233 


8000 


2667 


2460 


2286 


2000 


1778 


KiOO 


1334 


1143 


1000 


800 


533 


457 


400 


3.56 


320 


291 


267 


9000 


3000 


2770 


2571 


2250 


2000 


1800 


1500 


1286 


1125 


900 


600 


514 


450 


400 


3(i0 


327 


300 


10000 


3333 


3075 


2857 


2500 


2222 


2000 


1667 


1429 


1250 


1000 


667 


571 


500 


444 


400 


364 


333 


20000 


6660 


6150 


5714 


5000 


4444 


400(1 


3333 


2857 


2500 


2000 


1333 


1143 


1000 


889 


800 


727 


667 


3(MI0(I 


KKKHfl ',Wi-> 


8571 


7500 


(;667 


(jOOO 


5000 


4286 


3750 


3000 


2000 


1714 


1500 


1333 


1200 


1091 


1000 


4(KHIII 


i:;;i:;:i ii'noo 


1142'.! 


10000 


.SSS'J 


8000 


6667 


5714 


5000 


4000 


2667 


2286 


2000 


1778 


1600 


1455 


1333 


5(MX) 


i(i(it;(i;ir)o75 


14286 


12500 


mil 


10000 


8333 


7143 


6250 


5000 


3333 


2857 


2500 


2222 


2000 


1818 


1667 


60000 


20000 


184:50 


17143 


15000 


13333 


12000 


10000 


8571 


7.500 


6000 


4000 


3429 


3000 


2667 


2400 


2182 


2000 


70000 


23333 


21525 


20000 


17500 


15556 


14000 


11667 


10000 


8750 


7000 


4667 


4000 


3500 


3111 


2800 


2545 


2333 


S(HKKI 


2(;r>(;r. 


■j4i;(M) 


_'2Sn7 


_'0000 


17778 


ICOOO 


[■.\:r.v:. 


11429 


10000 


8000 


5333 


4571 


4O00 


.'!55('i 


.3200 


2909 


2667 


',){ H H M 1 


:mkkii» '_'7r.7r. 


J.J7U 


JLTiIMI 


JOOOO 


ISOOO 


1 501 10 


12s:.7 


llL'.-.O 


000(1 


(;(ioo 


514:; 


4500 


4000 


: ;( ;oo 


;3273 


3000 


lIKKHHI 


.■;:;:;:;;; :;ii7.'>(i 


-'s:>7l 


_',"llll«l 


L'"J_'2l.' 


20000 


l(;i;i;7 


HL'SC, 


1 L:r.i)o 


10000 


(;('.( '.7 


.".714 


5000 


4444 


4000 


•M;m 


.3333 


2t K M H K ) 


(iliC.I)(i r.l.MM) 


"i7l4:; 


'.000(1 


44444 


40000 




.'s:.7i 


^TiOOO 


JOOOO 


I: I.".:;.". 


1 llL'O 


10000 


■^SS' t 


,"^(100 


-.>-.. 


6667 


300(KH.) 


KUKMKI '.IL'lT.O 


s,J714 


7r.oon 


)t;i ',{',' 


OOIIOO 


".0000 


}Js,-,7 






JOddO 


1714:; 


15000 


1 :;:;:;:; 


rjooo 


loooo 


10000 



EXPLANATION TO TABLE ABOVE. 

The eolumn of figures at the left of eacli page represents either S(iuare feet of glass sur- 
face, square feet of wall surface, or cubic feet. 

The row of ligiires at the top ai-e the rates. 

The colunin of figures under each rate is the product of the colunni of figures on the left 
divided by tliatrate. 

To ascertain the amount of radiation necessary to heat any given number of .sciuare feet 
of glass, wall surface, or cubic feet, turn to the number in the lefHiand coluimi (under 
"Amt.") representing the amount to be warmed; look opposite tliis, and under the desired 
rate you will find the amount of radiation required at that rate. 



CIRCUMFERENCES AND AREAS OF CIRCLES. 



Diam. 


Circ. 


Area. 


Diam. 


Circ. 


Area. 


Diam. 


Circ. 


Area. 


Diam. 


ClFC. 


Area. 


sS - 


.0981 


.00076 


Ti- 


23.56 


44.178 


16 — 


50.26 


201.06 


24J- 


76.96 


471.43 


i^ 


.1903 


.00306 




23.95 


45.663 




50.65 


204.21 




77.36 


476.25 


? - 


• .3926 


.01227 


7} - 


24.34 


47.173 


16i - 


51.05 


207.39 


24| - 


77.75 


481 10 


A 


.5890 


.02761 




24.74 


48.707 




51.44 


210.59 




78.14 


485.97 


I- 


.7854 


.04908 


8 — 


25.13 


50.265 


16^ - 


51.83 


213.82 


25 - 


78.54 


•490.87 


5 


.9817 


.07669 




25.52 


51.848 




52.22 


217.07 




78.93 


495.79 


a 


1.178 


.1104 


8i - 


25.91 


53.4,56 


161 - 


52.62 


220.35 


25i - 


79.32 


500.74 


t- 


1.374 


.1.503 




26.31 


55.088 




53.01 


223.65 




79.71 


505.71 


1.570 


.1963 


8i - 


26.70 


56.745 


17 - 


53.40 


226.98 


25h - 


80.10 


510.70 


A 


1.767 


.2485 




27.09 


58.426 




53.79 


230.33 




80.50 


515.72 


1 - 


1.963 


.3097 


8| - 


27.48 


60.1.32 


17i - 


54.19 


233.70 


251 - 


80.89 


520.70 


Ih 


2.159 


.3712 




27.88 


61.862 




,54.58 


237.10 




81.28 


525.83 


I - 


2.35(J 


.4417 


9 — 


28.27 


63.617 


17i - 


54.97 


240.52 


26 — 


81.68 


530.93 


u 


2.552 


.5184 




28.66 


65.396 




55.37 


243.97 




82.07 


536.04 


\ - 


2.748 


.6013 


9i - 


29.05 


67.200 


n| - 


55.76 


247.45 


26J - 


82.46 


511.18 


.''- 


2.945 


.6902 




29.45 


69.029 




56.16 


250.94 




82.85 


546.35 


3.141 


.78,')4 


9i - 


29.84 


70.882 


18 - 


56.!54 


2.54.46 


26J - 


83.25 


551.54 




3.534 


.9940 




30.23 


72.759 




56.94 


258.01 




83.64 


556.76 


li - 


3.927 


1.227 


9} - 


30.63 


74.062 


18.i - 


57.33 


261.58 


2(ii - 


84.03 


562.00 




4.319 


1.484 




31.02 


76.588 




57.72 


265.18 




84.43 


567.26 


1* — 


4.712 


1.767 


10 — 


31.41 


78.539 


m - 


.58.11 


268.80 


27 - 


84.82 


572.55 




5.105 


2.073 




31.80 


80.515 




58.51 


272.44 




85.21 


577.87 


IJ - 


5.497 


2.4115 


mi - 


32.20 


82.516 


m - 


58.90 


276.11 


271 - 


85.60 


583.20 




5.890 


2.761 




32..59 


84..540 




,59.29 


279.81 




86.00 


588.57 


2 — 


6.283 


3.141 


loi — 


32.98 


86.590 


19 — 


59.69 


283.52 


27i — 


86.39 


593.95 




6.675 


3.546 




.33.37 


88.664 




60.08 


287.27 




86.78 


599.37 


2i - 


7.068 


3.976 


lOJ - 


33.77 


90.762 


19i - 


60.47 


291.03 


273 - 


87.17 


604.80 




7.4*11 


4.4.J0 




34.16 


92.885 




60.86 


294.83 




87.57 


610.26 


2J — 


7.854 


4.908 


11 — 


34.55 


95.033 


19.J - 


61.26 


298.64 


28 - 


87.96 


615.75 




8.246 


5.411 




:J4.95 


97.205 




61.65 


302.48 




88.35 


621.26 


2| - 


8.639 


5.939 


lU - 


35.34 


99.402 


19J - 


62.04 


306.35 


28.i - 


88.75 


626.79 




9.032 


6.491 




35.73 


101.(;2 




62.43 


310.24 




89.14 


632.35 


3 — 


9.424 


7 . 068 


lU - 


36.12 


103.86 


20 - 


62.83 


314.16 


28^ — 


89.. 53 


637 94 




9.817 


7.669 




36.52 


106.13 




(13.22 


318.09 




89.92 


643.54 


3i - 


10.21 


8.295 


111 - 


36.91 


108.43 


20.i - 


63.61 


322.06 


28| - 


90.32 


649.18 




10.60 


8.946 




37.30 


110.75 




64.01 


320.05 




90.71 


654.83 


3^ - 


10.99 


9.621 


12 — 


37.69 


113.09 


20J — 


64.40 


330.06 


29 — 


91 . 10 


660.52 




11.38 


10.320 




38.09 


115.4«> 




64.79 


,334.10 




91.49 


666.22 


3| - 


11.78 


11.044 


12.'i - 


38.48 


117.85 


20| - 


65.18 


338.16 


29i - 


91.89 


671.95 




12.17 


11.793 




38.87 


120.27 




65.,58 


342.25 




92.28 


677.71 


4 — 


12.56 


12.566 


12i — 


39.27 


122.71 


21 ~ 


65.97 


346.36 


29.^ - 


92.67 


683.49 




12.95 


13.364 




39.66 


125.18 




66.36 


350.49 




93.06 


689.29 


4i - 


13.. 35 


14.186 


12J - 


40.05 


127.67 


21i - 


66.75 


354.65 


29J - 


93.46 


695.12 




13.74 


15.033 




40.44 


130.19 




67 15 


3,')8.84 




93.85 


700.98 


4^ - 


14.13 


15.904 


13 — 


40.84 


132.73 


2U- 


67. ,54 


363.05 


30 — 


94.24 


706.86 




14.52 


10.800 




41.23 


135.29 




67.93 


367.28 




94.64 


712.76 


4| - 


14.92 


17.720 


13i - 


41.62 


137.88 


21J - 


68.32 


371.54 


30} - 


95.03 


718.69 




15.31 


18.665 




42.01 


140.50 




68.72 


375.82 




95.42 


724.64 


5 — 


15.70 


19.635 


13J — 


42.41 


143.13 


22 - 


69.11 


.380.13 


30i — 


95.81 


730.61 




16.10 


20.629 




42.80 


145.80 




69.50 


384.46 




96.21 


736.61 


5i - 


16.49 


21.647 


131 - 


43.19 


148.48 


22J - 


69.90 


388.82 


30| - 


96.60 


742.64 




16.88 


22.690 




43.58 


151.20 




70.29 


393,20 




96.99 


748.69 


5^ - 


17.27 


23.758 


14 — 


43.98 


153.93 


22J — 


70.68 


397.60 


31 — 


97.38 


754.76 




17.67 


24.850 




44.37 


156.69 




71.07 


402.03 




97.78 


760.86 


51 - 


18.06 


25.967 


14J - 


44.76 


159.48 


22| - 


71.47 


406.49 


31 i - 


98.17 


766.99 




18.45 


27.108 




45.16 


162.29 




71.86 


410.97 




98.56 


773.14 


6 — 


18.84 


28.274 


14i — 


45.55 


165.13 


23 — 


72.25 


415.47 


31i — 


98.96 


779.31 




19.24 


29.464 




45.94 


167.98 




72^64 


420.00 




99.35 


785.51 


6i - 


19.63 


30.679 


141 - 


46.33 


170.87 


231 - 


73.04 


424.55 


31J - 


99.74 


791.73 




20.02 


31.919 




46.73 


173.78 




73.43 


429.13 




100.1 


797.97 


6i - 


20.42 


33.183 


15 — 


47.12 


176.71 


m — 


73.82 


433.73 


32 — 


100 5 


804.24 




20.81 


34.471 




47.51 


179.67 




74.21 


438.30 




100.9 


810.54 


6| - 


21.20 


35.784 


15i - 


47.90 


182.72 


231 - 


74.61 


443.01 


321 - 


101.3 


816.86 




21.57 


37 122 




48.30 


1»5 66 




75.00 


447.69 




101.7 


823.21 


7 - 


21.99 


38.484 


15J — 


48.69 


188.69 


24 - 


75.39 


452.39 


32J - 


102.1 


829.57 




22.38 


39.871 




49.08 


191.74 




75.79 


4.57.11 




102.4 


835.97 


7i - 


22.77 


41.282 


151 - 


49.48 


194 82 


24i - 


76.18 


461.86 


32J - 


102.8 


842.39 




23.16 


42.718 




49.87 


197.73 




76.57 


466.63 




103.2 


848.83 



28 



CIRCUMFERENCES AND AREAS OF CIRCLES. 



CONTINUED. 



Diam. 


Circ. 


Area. 


Diam. 


Circ. 


Area. 


Diam. 


Circ. 


Area. 


Diam. 


Circ. 


Area. 


33 — 


103.6 


855.30 


41i - 


130.3 


13.52.6 


50 — 


157.0 


1963.5 


58i — 


183.7 


2687.8 




104.0 


861.79 




130.7 


1360.8 




157.4 


1973.3 




184.1 


2699.3 


334 - 


104 4 


868.30 


41} - 


131.1 


1.3()9.0 


50J - 


157.8 


1983.1 


58} - 


184 5 


2710 8 




104.8 


874.88 




131.5 


la77.2 




158.2 


1993.0 


, 


184.9 


2722.4 


m — 


105.2 


881.41 


42 — 


131.9 


1385.4 


50* - 


158.6 


2002.9 


59 — 


185.3 


2733.9 




105.6 


888.00 




132.3 


1393.7 




159.0 


2012.8 




185.7 


2745.5 


33| - 


106.0 


894.61 


42i - 


132.7 


1401 9 


50} - 


159.4 


2022.8 


59i - 


186.1 


2757.1 




106.4 


901 . 25 




133.1 


1410.2 




159.8 


2032.8 




186.5 


2768.8 


34 — 


106.8 


907.92 


42^ - 


133.5 


1418.6 


' 51 — 


160.2 


2042.8 


59^ — 


186.9 


2780.5 




107.2 


914.61 




133.9 


1426.9 




160.6 


2052.8 




187.3 


2792.2 


34i - 


107.5 


921.32 


42} - 


134.3 


14.35.3 


51i - 


161.0 


2002.9 


59} - 


187.7 


2803.9 




107.9 


928.06 




134.6 


1443.7 




161.3 


2072.9 




188.1 


2815.6 


34i - 


108.3 


934.82 


43 — 


135.0 


1452.2 


51^ — 


161.7 


2083.0 


60 - 


188 4 


2827.4 




108.7 


941.60 




1.35.4 1460 6 1 




162.1 


2093.2 




188.8 


2839.2 


34J - 


109.1 


948.41 


43i - 


135.8 


1469.1 


51} - 


162.5 


2103.3 


60i - 


189.2 


2851.0 




109.5 


955.25 




136.2 


1477.6 




162.9 


2113.5 




189.6 


2862.8 


35 — 


109.9 


962.11 


43i - 


im.6 


1480.1 


52 — 


163.3 


2123.7 


ooi — 


190.0 


2874.7 




110.3 


968.99 




1.37.0 


1494.7 




163.7 


2133.9 




190.4 


2886.6 


35i - 


110.7 


975.90 


43| - 


137.4 


1.503.3 


52i - 


164.1 


2144.1 


OOJj, - 


190.8 


2898.5 




111.1 


982.84 




137.8 


1511.9 




164.5 


2154.4 




191.2 


2910.5 


35i — 


111.5 


989.80 


41 — 


138.2 


1520.5 


52J - 


164.9 


2164.7 


61 — 


191.6 


2922.4 




111.9 


990,78 




138.6 


1529.1 




165.3 


2175.0 




192.0 


2934.4 


351 - 


112.3 


1003.7 


44i - 


139.0 


1537.8 


52} - 


165.7 


2185.4 


61i - 


192.4 


2946.4 




11-2.7 


1010.8 




139.4 


1.546.5 




166.1 


2195.7 




192:8 


2958.5 


36 - 


113.0 


1017.8 


«^- 


139.8 


1555.2 


53 — 


166.5 


2206.1 


61^ — 


193.2 


2970.5 




113.4 


1024.9 




140.1 


1.564.0 




166.8 


2216.6 




193.6 


2982.6 


36i - 


113.8 


1032.0 


44} - 


140.5 


1572.8 


53i - 


167.2 


2227.0 


61} - 


193.9 


2994.7 




114.2 


1039.1 




140.9 


1.581.6 




167.6 


2237.5 




194.3 


3006.9 


36i — 


114.6 


1049.3 


45 — 


141.3 


1.590.4 


53* — 


168.0 


2248.0 


62 — 


194.7 


3019.0 




115.0 


1053.5 




141.7 


1.599.2 




168.4 


2258.5 




195.1 


3031.2 


361 - 


115 4 


1060.7 


45i - 


142.1 


1608.1 


53} - 


168.8 


2269.0 


02i - 


195.5 


3043.4 




115.8 


1067.9 




142.5 


1617.0 




169.2 


2279.6 




195.9 


3055 7 


37 - 


116.2 


1075.2 


45^ - 


142.9 


1625 9 


.54 — 


169.6 


2290.2 


62J- 


196.3 


3067.9 




116.6 


1082.4 




143.3 


1634.9 




170.0 


2300.8 




196.7 


3080.2 


37i - 


117.0 


1089.7 


45} - 


143.7 


1643.8 


54i - 


170.4 


2311.4 


62} - 


197.1 


3092.5 




117.4 


1097.1 




144.1 


16.52.8 




170 8 


2322.1 




197.5 


3104 8 


sn — 


117.8 


1104.4 


46 — 


144.5 


1661.9 


541 - 


171.2 


2332.8 


63 — 


197.9 


3117.2 




118.2 


1111.8 




144.9 


1670.9 




171.6 


2343.5 




198.3 


3129.6 


37J - 


118.6 


1119.2 


m - 


145.2 


1680.0 


54f - 


172.0 


2354 2 


63| - 


198.7 


3142.0 




118.9 


1126.6 




145.6 


1689.1 




172.3 


2365.0 




199.0 


3144.4 


38 — 


119 -.i 


11.31.1 


46^ — 


146.0 


1698.2 


55 — 


172.7 


2375.8 


63*- 


199.4 


3166.9 




119.7 


1141.5 




146.4 


1707.3 




173.1 


2386.6 




199 8 


3179.4 


38i - 


120.1 


1149.0 


46} - 


146.8 


1716.5 


55i - 


173.5 


2397.4 


63} - 


200.2 


3191.9 




120.5 


11.56.6 




147.2 


1725.7 




173.9 


2408.3 




200.6 


3204.4 


38h - 


120.9 


1164.1 


47 — 


147.6 


1734.9 


55* - 


174.3 


2419.2 


64 - 


201.0 


3216.9 




121.3 


1171.7 




148.0 


1744.1 




174.7 


2430.1 




201.4 


3229.5 


38| - 


121.7 


1179.3 


47i - 


148.4 


1753.4 


55} - 


175.1 


2441.0 


64i - 


201.8 


3242.1 




122.1 


1186.9 




148.8 


1762.7 




175.5 


24.52.0 




202.2 


3254.8 


39 - 


122.5 


1194 5 


47J — 


149.2 


1772.0 


56 — 


175.9 


24('3.0 


64* - 


202.6 


3267.4 




122.9 


1202,2 




149.0 


1781.3 




176.3 


2474.0 




203.0 


3280.1 


39i - 


123.3 


1209.9 


47} - 


150.0 


1790.7 


56J - 


176.7 


2485.0 


64} - 


203.4 


3292.8 




123 7 


1217.6 




1.50.4 


1800 1 




177.1 


2496.1 




203.8 


3305.5 


39J - 


124 


1225.4 


48 - 


1.50.7 


1809.5 


56* — 


177.5 


2507.1 


65 — 


204 2 


3318.3 




124 4 


1233.1 




151.1 


1818.9 




177.8 


2518.2 




204.5 


3331.0 


391 - 


124.8 


1240.9 


48i - 


151.5 


1828.4 


56} - 


178.2 


2529.4 


65i - 


204.9 


3343.8 




125.2 


1248.7 




1.51.9 


1837.9 




178.6 


2540.5 




205.3 


33.56.7 


40 - 


125.6 


12.56.6 


m - 


152.3 


1847.4 


57 — 


179.0 


25.51.7 


65* — 


205.7 


3369.5 




126.0 


1264.5 




1,52.7 


1856.9 




179.4 


2562.9 




206.1 


3382.4 


40i - 


126.4 


1272.3 


48} - 


153.1 


1866.5 


57i - 


179.8 


2574.1 


65} - 


206.5 


3395.3 




126.8 


1280.3 




153.5 


1876.1 




180.2 


2585.4 




206.9 


3408.2 


m - 


127.2 


1288.2 


49 — 


1.53.9 


1885.7 


57*- 


180.6 


2.596.7 


66 - 


207.3 


3421.2 




127.6 


1291.2 




154.3 


1895.3 




181.0 


2608.0 




207.7 


3434.1 


40} - 


128.0 


1304.2 


49i - 


1.54.7 


1905.0 


57} - 


181.4 


2619.3 


mk - 


208.1 


3447.1 




128.4 


1.312.2 




1.55.1 


1914.7 




181.8 


2630.7 




208.5 


.3460.1 


41 - 


128.8 


1320.2 


49^ — 


155.5 


1924.4 


58 — 


182.2 


2642.0 


66^- 


208.9 


3473.2 




129.1 


1.328.3 




1.55.9 


19.34.1 




182.6 


2653.4 




209.3 


3486.3 


41i - 


- 129.5 


13.36.4 


49} - 


156.2 


1943.9 


58i - 


182.9 


2664.9 


66} - 


209.7 


3499.3 




129.9 


1.344.5 




156.6 


1953.6 




183.3 


2676.3 




210.0 


3512.5 



29 



CIRCUMFERENCES AND AREAS OF CIRCLES. 











CONCLUDED 












Diam. 


Circ. Area. 


Diam. 


Circ. 1 Area. 


Diam. 


Circ. 


Area. 


Diam. 


Circ. 


Area. 


67 — 


210,4 3525.6 


75J — 


237.1 1 4476 9 


84 — 


263.8 


5541.7 


92i — 


290.5 


6720.0 




210.9 


3538.8 




237.5 4491.8 




264.2 


5558.2 




290.9 


6738.2 


67i - 


211.2 


3552.0 


751 - 


237.9 


4506.6 


84J - 


264.6 


5.574.8 


92} - 


291.3 


6766.4 




211.6 


3565.2 




238.3 


4.521.5 




265.0 


5591.3 




291.7 


6776.4 


6U — 


212.0 


3578,4 


76 — 


238.7 


4536.4 


m- 


265.4 


5607.9 


93 — 


292.1 


6792.9 




212.4 


3591.7 




239.1 


4551.4 




265.8 


5624.5 




292 5 


6811.1 


671 - 


212.8 


3ti05.0 


76i - 


239 5 


4566.3 


84} - 


266 2 


5641.1 


93i - 


292,9 


6829.4 




213.2 


3618.3 




239.9 


4.581.3 




266.6 


5657.8 




293,3 


6847.8 


68 — 


213.6 


3631.6 


76J - 


240.3 


4.596.3' 


85 - 


267.0 


,5674.5 


93J - 


293.7 


6866.1 




214.0 


3645.0 




240.7 


4611.3 




267.4 


5691.2 




294.1 


6884.5 


68i - 


214.4 


3658.4 


761 - 


241.1 


4r,26.4 


85i - 


267.8 


6707.9 


93} - 


294.5 


6902.9 




214 8 


3671.8 




241 5 4i;41.5 




268.2 


5724.6 




294.9 


6921.3 


68^ - 


215.1 


3685.2 


77 — 


241.9 4(i.^,(;.(i 


85* — 


268.6 


5741.4 


94 — 


295.3 


6939.7 




215.5 


3698.7 




242.2 


4671.7 




268.9 


57.58.2 




295.7 


6958.2 


681 - 


215.9 


3712.2 


77i -. 


242.6 


4686.9 


851 - 


269.3 


5775.0 


94i - 


296.0 


6976.7 




216.3 


3725.7 




243.0 


4702.1 




269.7 


5791.9 




296.4 


6995.3 


69 — 


216.7 


3739.2' 


"n- 


243.4 


4717.3 


86 — 


270.1 


5808.8 


94i - 


296.8 


7013.8 




217.1 


37,'52.8 




243 8 


4732.5 




270.5 


5825.7 




297.2 


7032.3 


69i - 


217.5 


3766.4 


77i - 


244.2 


4747.7 


86i - 


270.9 


5842.6 


94} - 


297.6 


7060.9 




217.9 


3780.0 




244.6 


4763.0 




271.3 


58,59.5 




298.0 


7069.5 


69J — 


218.3 


3793.6 


78 — 


245.0 


4778.3 


86^ — 


271.7 


5876.5 


95 - 


298.4 


7088.2 




218.7 


,'«07.3 




245.4 


4793.7 




272.1 


5893.5 




298.8 


7106.9 


69| - 


219.1 


3821.0 


78i - 


245.8 


4809.0 


86} - 


272.5 


5910.5 


95i - 


299.2 


7125.5 




219.5 


3834.7 




246.2 


4824.4 




272.9 


5927.6 




299.6 


7144.3 


70 — 


219.9 


3848.4 


78J - 


246.6 


4839.8 


87 - 


273.3 


5944.6 


95* - 


300.0 


7163.0 




220.3 


3i-'62.2 




247.0 


48,55.2 




273.7 


,5961.7 




300.4 


7181.8 


70i - 


220.6 


3875.9 


78| - 


247.4 


4870.7 


87i - 


274.1 


,5978.9 


95} - 


300.8 


7200.5 




221.0 


3889.8 




247.7 


4.S86.1 




274.4 


,5996.0 




301.2 


7219.4 


70J — 


221.4 


.3903.6 


79 — 


248.1 


4901.6 


87^ - 


274.8 


6013.2 


96 — 


301.5 


7238.2 




221.8 


3917.4 




248.5 


4917.2 




275.2 


6030.4 




301.9 


7257.1 


70| - 


222.2 


3931.3 


79i - 


248.9 


4932.7 


87} - 


275.6 


6m7.0 


96| - 


302.3 


7275.9 




222.6 


3945.2 




249.3 


4948.3 




276 . 


r)(iiu.8 




302.7 


7294.9 


71 — 


223.0 


3959.2 


79J- 


249.7 


4963.9 


88 — 


276 4 


0082, 1 


96J — 


303.1 


7313.8 




223.4 


3973.1 




250.1 


4979.5 




276.8 


0099.4 




303.5 


7332.8 


7U - 


223.8 


3987.1 


79J - 


250.5 


4995.1 


88i - 


277.2 


6116.7 


96} - 


303.9 


7341.7 




224.2 


4001.1 




250.9 


,5010.8 




277.6 


61.34.0 




304.3 


7370.7 


nh- 


224.6 


4015.1 


80 - 


2.51.3 


,5026.5 


88J - 


278 


6151.4 


97 — 


304.7 


7389.8 




225 


4029.2 




251.7 


,5042.2 




278.4 


(ii(;8.8 




305,1 


7408.8 


71| - 


225.4 


4043.1! 


80i - 


252.1 


,5058.0 


88} - 


278.8 


6186.2 


97i - 


305.5 


7427.9 




225.8 


4067.3 




252.5 


5073.7 




279.2 


6203.6 




305.9 


7447.0 


72 — 


220.1 


4071.5 


80J — 


252.8 


5089.5 


89 — 


279.6 


6221.1 


97* - 


306.3 


7466.2 




226.5 


4085.6 




253.2 


5105.4 




279.9 


6238.6 




306.6 


7485.3 


721 - 


226.9 


4099.8 


80} - 


2.53.6 


,5121.2 


89J - 


280.3 


62,56.1 


97} - 


307.0 


7504.5 




227.3 


4114.0 




254.0 


5137.1 




280.7 


6273 . 6 




307.4 


7523.7 


72J- 


227.7 


4128.2 


81 — 


254.4 


5153.0 


89^ - 


281.1 


6291.2 


98 — 


307.8 


7542.9 




228.1 


4142.5 




254.8 


,5168.9 




281.5 


6308.8 




308.2 


7562.2 


72J - 


228.5 


41.56.7 


8U - 


255.2 


5184.8 


89| - 


281.9 


6326.4 


98i - 


308.6 


7581.5 




228.9 


4171.0 




255.6 


5200.8 




282.3 


6344.0 




309.0 


7600.8 


73 — 


229.3 


4185.3 


81^ — 


256.0 


,5216.8 


90 - 


282.7 


6361.7 


98* - 


309.4 


7620.1 




229.7 


4199.7 




256.4 


5232.8 




283.1 


6379.4 




309.8 


7639.4 


731 - 


2.30.1 


4214.1 


811 - 


256.8 


,5248.8 


90J - 


283.5 


6397.1 


98} - 


310.2 


7658.8 




230.5 


4228.5 




257.2 


,5264.9 




283.9 


6414.8 




310.6 


7678.2 


73J — 


230.9 


4242.9 


82 — 


257.6 


5281.0 


90i — 


284.3 


6432.6 


99 — 


311.0 


7697.7 




231.3 


4257.3 




258.0 


5297.1 




284.7 


6450.4 




311.4 


7717.1 


731 - 


231.0 


4271.8 


82i - 


258.3 


5313.2 


90} - 


285.1 


6468.2 


99i - 


311.8 


7736.6 




232.0 


4286.3 




258.7 


5329.4 




285.4 


1486.0 




312.1 


7756.1 


74 — 


232.4 


4300,8 


82^ - 


259.1 


5345.6 


91 — 


285.8 


6503.8 


99J - 


312.5 


7775.6 




232.8 


4315.3 




259.5 


5361 . 8 




286.2 


6521.7 




312.9 


7795.2 


74i - 


233.2 


4.329.9 


82} - 


259.9 


5378,0 


9U - 


286.6 


6539.6 


99} - 


313.3 


7814.7 




233.6 


4:i44.5 




260.3 


5494.3 




287.0 


6557 . 6 




313.7 


7834.3 


■m- 


2.34.0 


4359.1 


83 — 


260.7 


5410.6 


91i — 


287.4 


6575.5 


100 — 


314.1 


7853.9 




234.4 


4.373.8 




261.1 


5426.9 




287.8 


6593.5 




314.5 


7874.0 


741 - 


234.8 


4388.4 


83i - 


261.5 


5443.2 


91} - 


288.2 


6611.5 


lOOJ - 


314.9 


7893.3 




235.2 


4403.1 




261.9 


54,59.6 




288.6 


6629.5 




315.3 


7913.1 


75 — 


235.6 


4417.8 


83i — 


262.3 


5476.0 


92 — 


289.0 


6647.6 


lOOJ — 


315.7 


7932.7 




236.0 


44.32.6 




262.7 


5492.4 




289.4 


6665.7 




316.0 


7942.4 


75i - 


236.4 


4447.3 


83} - 


263.1 


5508.8 


m - 


289.8 


6683.8 


100} - 


316.4 


7972.2 




236.7 


4W-.2.1 




263.5 1 5,525.3 




290.2 


6701.9 




316.8 


7991.9 



30 



SQUARE FEET OF DIRECT STEAM OR HOT WATER RADIATION SUP- 
PLIED IN GREENHOUSES BY MAIN SUPPLY PIPES, TWO-PIPE 
SYSTEM, LOW PRESSURE STEAM HEATING AND OPEN TANK 
HOT WATER HEATING * 



STEAM. 


HOT WATER. 


Size of 
Flow Pipe. 


Square feet of Radiation 
; Supplied. 


Size of 
Keturn Pipe. 


Size of Pipe. 


Square feet of Eadiatioii 

supplied by Flow and 

Return Pipe. 


1 


35 


i 


1 


40 


U 


80 


i 


l» 


90 


U 


140 


1 


I'. 


130 


2 


300 


1 


2 


250 


2J 


460 


11 


21 


350 


3 


670 


n 


3 


50O 


3J 


920 


n 


3J 


700 


4 


1200 


u 


4 


900 


4J 


1650 


ij 


n 


1150 


5 


1875 


2 


5 


1400 


6 


2700 


'> 


6 


2100 


7 


3700 


n 


7 


3000 


8 


4800 




8 


4000 


9 


6100 


3 


9 


5000 


10 


7500 


3 


10 


6000 


11 


0100 


3^ 


11 


7400 


12 


11000 


31 


12 


9000 



* See page 32 carrying capacity of pipes. 











EQUALIZATIOIN 


OF PIPE 


AREAS. 












Pipe 

Sizes. 


h 1 1 1 11 


n 


2 


2h 


3 3> 


4 


H 


5 


6 


7 


8 9 


10 


h 


1. 


1.7 


2.9 


4.9 


6.6 


11. 


15.7 


24. 


32.4 


41.8 


52.4 


65.6 


94.8 


127. 


164. 


205. 


259. 


i 




1. 


I.e. 


2.6 


3.8 


6.3 


9. 


13.8 


18.5 


23.9 


30. 


37.5 


54.2 


72.6 


94. 


117.5 


148. 


1 






1. 


1.7 


2.4 


3.9 


5.5 


8.6 


11.4 


14.7 


18.5 


23.1 


33.5 


44.8 


58. 


■ 72.6 


91.4 


IJ 








1. 


1.4 


2.3 


3.2 


5. 


6.6 


8.5 


10.6 


13.3 


19.3 


25.9 


33.4 


41.9 


52.« 


n 










1. 


1.6 


2.4 


3.6 


4.9 


6.2 


7.8 


9.8 


14.1 


19. 


24.5 


31.4 


38.7 


o 












1. 


1.4 


2.2 


3. 


3.8 


4.7 


5.9 


8.6 


n.5 


14.9 


18.6 


23.5 
















1. 


1.6 


2.1 


2.7 


3.3 


4.2 


6. 


8.1 


10.4 


13.1 


16.5 


3 
















1. 


1.4 


1.7 


2.1 


2.7 


3.9 


5.2 


6.8 


8.5 


10.6 


'H 


















1. 


1.3 


1.6 


2.2 


2.9 


3.9 


5.6 


6.3 


8. 


4 




















1. 


1.2 


1.5 


2.3 


3. 


3.9 


4.9 


6.2 


■ij 






















1. 


1.2 


1.8 


2.4 


3.1 


3.9 


4.9 


5 
























1. 


1.4 


1.9 


2.5 


3.1 


3.9 


6 


























1. 


1.3 


1.7 


2.2 


2.7 


( 




























1. 


1.3 


1.6 


2.3 


8 






























1. 


1.2 


1.6 


9 
































1. 


1.2 


10 


































1. 



Note. — For transverse areas of pipes — external, internal and metal, see page 37. 



RELATIVE CAPACITIES OF PIPES FOR CONVEYING OR DISCHARGING 
LIQUIDS AND CASES. 



E 

































E 


.2 


? 


1 


u 


11 


2 


21 


3 


31 


4 


5 


6 


7 


8 


9 


10 


12 


« 


Q 


































Q 


3 


1 


2.05 3.57 


5.66 


11.61 


20.40 


31.98 


i 


1 


j j 






f 


1 




1.00 1.74 


2.75 


5.66 


9.87 


15.57 


23. (1(1 32 .00 


ri(;.(K» ss.do 


l2',).(iolisi.(Ki 24:;.(io 


:!i(;.0(i 


49S.O(( 


1 


1} 






1.00 


1 .57 


3.21 


5.06 


8.95 


i:;.2l IS.:;;* 


."/J. 12 50. (IT 


74.0(1 104.(10 i:;'.i.o(i'isi.(i(i 'jsc.oo 


1| 


11 








1.(K) 


2.05 


3.57 


5.6t; 


s.;;',i ll.c.l 


20. 2S 


32. IS 


47.()4i (;(;.oo 


SS.OO ll.").0() 


1S2.(KI 


1* 


2 










1.00 


1:74 


2.75 


4.06 


5.66 


9.87 


15.57 


22.90 


31.98 


42.93 


55.86 


88.13 


2 


2.1 












1.00 


1..57 


2. .32 


3.24 


5.66 


8.93 


13.13 


18.33 


24.61 


32.02 


50.52 


2J 


3 














1.00 


1.47 


2.05 


3.57 


5.6() 


8.39 


11.61 


15.57 


20.28 


32.18 


3 


31 
















1.00 


1.39 


2.43 


3.83 


5.66 


7.91 


10.57 


14.10 


21.69 


-^h 


4 


















1.00 


1.74 


2.75 


4.06 


5.66 


7. .59 


9.87 


15.57 


4 






















1.00 


1.57 


2.32 


3.24 


4.24 


5.66 


8.93 


5 


6 






















1.00 


1.47 


2.05 


2.75 


3.57 


5.66 


6 


























1.00 


1.39 


1.88 


2.43 


3.83 


7 


8 


























1.00 


1.33 


1.74 


2.75 


8 


9 




























1.00 


1.20 


2.05 


9 


10 1 




























1.00 


1.57 


10 



The capacity of a pipe is in inverse proportion to the s(iuare r( 
Doubling the diameter of a pipe increases its capacity 5.66 tinn 



)ot of its length, 
times. 



31 



Equalization of Pipe Radiation. 



Values, or quantities, can be represented by space, 
or distance, and, if the divisions be in exact proportion, 
each to the other, diagrams can be made from which 
results are read off at a glance, and by having parts of 
the diagram movable, many examples can be quickly 
performed without mental calculations. 

The column of figures on the scale in centre of 
diagram on this page represents square feet of surface 
subdivided into tenths. The figures on the upright 
lines represent the number of pipes, each one foot long, 
required to make the amount of radiation shown on 
the scale opposite said figures. 

When the number of pipes of two or more sizes 
appear opposite the same amount on scale, their radia- 
tion is equal," or is proportionally equal as they come 
proportionally opposite the same amount of radiation.' 

The diagram hereon was made principally for de- 
termining the number of pipes in a greenhouse, and as 
this can be accomplished easier with a moving scale, 
I send a separate diagram with each book, so that the 
scale on same can be cut out and the two sides fastened 
to a thin piece of wood so as to allow the scale to be 
moved between them. 

HOW TO USE THE SCALE. 

If pipes are all to be of one size, look on line rep- 
resenting size of pipe to be used, exactly opposite the 
amount of radiation required, the number "found will 
be the number of pipes required. In all cases where 
the amount of radiation required comes between two 
numbers use the next larger number of pipes. 

If pipes are to be of different sizes, move the scale 
downward a distance equal to the radiation of all the 
large pipes, and opposite the total amount of radiation 
to be used will be found the number of small pipes 
necessary. Thus if a house 100 ft. long requires 4.8 
sq. ft. per lineal ft. in which you wish to use one, 2 in. 
flow pipe, one 2^ in. flow pipe and 1^ in. returns but 
do not know how many, — Move the scale downward 
equal to the radiation in one 2 in. pipe — See Figure 1. 
Again move it downward, but this time equal to the 
radiation in a 2^ in. pipe — See Figure 2. Without 
moving the scale again look opposite 4.8 and you will 
find eight, the required number of li in. pipes 



32 



J^"= — 



^ // 



zriSir" 



^- 10- 



^ 0-i 



^ 6 



4-^ 



rr i -r:- 



r\^Wr\ 



' '*' IU0IAT1OM ' 



^H 





Fig. 1. 



Fig. 2. 



Maximum lengths for pipes in coils for low pressure steam 
and open tank hot water heating.* 



Size 

OF 

Pipe 


STEAM 


Hot Watek 


Two 


Pipe System 


SlN( 


;i.E Pipe System 


1 inch 
U " 
u • 

O 1 . 

2^ ■' 


100 feet 
170 " 
275 " 
475 " 
625 •' 


60 feet 
110 " 
160 " 
250 ' ' 
300 •' 


120 feet. 
200 " 
250 " 
400 " 
600 " 



« Under favoruble conditions, good pilch in pipes, etc., greater lengths for 
steam can be used by carrying more than 5 lbs. pressm-e, but it is not advisable. 



33 



GUIDE POSTS. 

The suggestions given below are not intended to cover the 
ground of pipe fitting, but are simply to guard against errors 
■which are common and which can be avoided. 
BOILER ROOM AND CHIMNEY. 

Geographical conditions often determine the location of 
boiler room, but when equally convenient its position should be 
such as to prevent the chimney from casting shadow on the houses. 

Good chimney draft is imperative to the success of the boiler 
(boilers do not make draft) . The diameter of the chimney can 
be obtained from the boiler makers and generally from their 
catalogues. The height should be sufficient to prevent surround- 
ing houses, trees or other obstacles from interfering. 
MAIN SUPPLY PIPES. 

If you want a good working job, put in large mains. I have 
known many cases wnere small steam mains have caused suffi- 
cient water to leave the boiler to seriously damage same. 

RADIATING SURFACES. 

Never depend upon forcing your heating system in severe 
weather. Put in sufficient radiation to easily do the work in 
extreme weather and you will save the extra cost of piping in 
fuel in a short time. 

LOCATIOM OP RADIATIO/N. 

To secure a uniform temperature throughout the house, the 
radiation should be distributed as evenly as possible. Bunching 
the radiation is liable to cause drafts, detrimental to the best 
development of plant life. 

SIDE COILS vs. FLAT COILS. 

Water will circulate more evenly through coils laid 
flat (ooo) than it will through upright coils ( ° ) ; the tendency 
of hot water in upright coils is to pass through the top pipes 
only, especially is this true if the supply pipe is too small, there- 
fore, plan larger branches to supply vertical coils. 

GRADI/\G THE PIPES. 

Special care should be exercised in grading the pipes so as 
to give an even pitch, because pockets in the pipes interfere with 
the circulation of either steam or hot water. An upward bend 
followed by a downward bend in a line of hot water pipes forms 
an air pocket. A downward bend followed by an upward bend 
in a line of steam pipes forms a water pocket. 

34 



EXPA/\SIO/S A/\D CO/NTRACTION. 

The force exerted in cast or wrought iron pipes when heated 
is great enough to move a boiler or push the end out of a Green- 
house (I have known both to happen) ; therefore, support all 
pipes on expansion hangers and allow at least Ij^ inch for 
expansion for each one hundred lineal feet of pipe. " Expansion 
joints" are to be avoided whenever possible on account of 
repairs. " Swing joints " which answer the same purpose, are 
preferable, whenever they can be used. 

BRANCH PIPES. 

Branch pipes from steam main should be taken from top, 
side or midway between top and side, preferably the latter. 

Branches from hot water supply pipe should be taken off 
at side or at an angle of 45 '^ above the side. 

HOT WATER PIPES. 

Flow and return pipes should always be the same size. 
Never abutt two return pipes but bring them together through a 
twin elbow, Y, or one into the side of the other. 

TWINNING STEAM BOILERS. 

Whenever steam boilers are connected two or more in a 
battery there should be, in addition to the regular flow and 
return pipes, an independent connection above the water line, 
running from boiler to boiler and an independent connection 
below water line near bottom of boiler, for equalizing the water 
line. The steam connection for equalizing the pressure should 
be about i^ the capacity of the main steam pipe and the water 
connection should be about ^ to i^ the capacity of the main 
return pipe. 

REAMING PIPES. 

In cutting pipe there is often a burr left on the inside caused 
by the pressure of the cutter. It reduces the capacity materially, 
therefore to get the best results, the ends of the pipes should be 
carefully reamed out before placing them in position. 

VALVES. 

It is important in either steam or hot water heating to have 
full size, frictionless openings, therefore, as far as possible avoid 
the use of globe valves by using either angle or gate valves. 

Angle valves are cheaper and can often be arranged to dis- 
place an elbow, thus saving a fitting and an extra cut in the pipe, 

35 



AIR VALVES. 

Steam coils or radiators should each be supplied with an 
air valve placed low down on the return end in a place least 
liable to catch water from condensation. The end of each 
return from steam main should be supplied with an automatic 
air valve placed as high above water line as convenient. 

All hot water mains, branches, coils or radiators should 
have an air valve at highest point except when the arrangement 
of pipes is such that the air will pass out through them. 

EXPANSION TA/NK. 

The expansion tank should have capacity equal to 5% of 
the total contents of boiler, radiators, pipes and fittings. It 
should be located at a point above the highest pipes or radiators 
and should be connected to boiler without any valve between. 

If, instead of using an expansion tank, connection is made 
to a large supply tank it will be necessary to have a shut-off- 
valve in the expansion pipe to close in case of a leak . Whenever 
this is done, connect to the expansion pipe on boiler side of the 
shut-off-valve and extend a pipe back to and turned over top of 
the large tank so that if the valve is accidently left closed the 
water from expansion can escape and thus prevent damaging the 
apparatus. 

COVERING PIPES. 

Flow and return pipes should be covered except when act- 
ually needed for radiating surface. Covering the pipes not only 
saves fuel, but insures quicker and better service throughout the 
entire system. 

AUTOMATIC WATER FEEDER. 

The cost of an Automatic Water Feeder is so small and the 
advantages so great that they should be applied to every steam 
or hot water plant that is to be left over night without an attend- 
ant. I have known of many cases where a slight leak running 
several hours drained the boiler after which it was spoiled 
by fire, causing hundreds of dollars worth of damage, whereas, 
an Automatic Water Feeder would have kept water running 
in and prevented any damage. 

AUTOMATIC LOW WATER ALARM. 

Boilers that are to be left over night without attention, 
should be provided with an Automatic Alarm. Accidents do 
happen, therefore, it is but the part of wisdom to prevent as 
much damage as possible. 

36 



UNDERGROUND PIPES. 

<* Never allow heating pipes to come in contact with the 
earth because the moisture in the soil forms an excellent con- 
ductor of heat and in the course of a season will rob you of 
considerable fuel. Carefully cover and box all underground 
pipes. A thick coat of tar should be applied to the external sur- 
face of the box, and if there is liable to be standing water in the 
ground the box should be water-tight. 

RIGHT AND LEFT COUPLINGS. 

For pipes 2-inch and smaller, right and left couplings are 
preferable to unions with packing and are more reliable, if 
properly put together. To make a tight joint, screw the coupling 
onto one of the threads, mark it, back it off, counting the number 
of turns to unscrew it, then screw it onto the other thread, mark 
that end, unscrew it as before, counting the revolutions. Gen- 
erally it will screw onto one thread more than the other. Screw 
the coupling onto the long thread the number of turns it took 
in excess of the short thread, then get the pipes in perfect align- 
ment, press them together, turn the coupling and it will make 
up tight. If the coupling screws onto both threads the same 
number of turns, start it on both at the same time. 

ATTENTION TO SMALL THINGS. 

In many Greenhouse plants insufficient attention is given to 
caring for the details of the heating apparatus. Heating sur- 
faces of the boilers should be kept clean, the water in the boilers 
should be changed, valves kept packed, etc. Dirt, either on the 
outside or inside of the boiler decreases the absorption of heat, 
requires more coal and renders the boiler more susceptible to 
rust. Steam or water escaping from the valve stems cuts them 
out and requires more fuel. It requires but very little attention 
at the proper time to keep these things in good condition and 
owners should pay strict attention thereto. 

Several times during each heating season the safety valve 
should be lifted to make sure that it is in proper working order. 

Special attention should be given to the grate bars, because 
if the ashes are allowed to accumulate up under them so as to shut 
off the cold air and there is a good fire above, they will melt 
down in a very short time, whereas, if the ash pit is always kept 
clean they will last many years. 



37 



WROUGHT IRON WELDED STEAM, 



Adopted April 2, 1900. 



TRICE LIST AND TABLE 



<lj 












p. 


.rr* 




HH 


o 


e*-i 




o 










.^ 


N 


w 


■Si 



Price Ter Foot. 



Black. 

1^ In. and Smaller. Per 

Cent Discount. 



\\ Inch and Larger. Per 
Cent Discount. 



List. 



3.05 J4 

.05/2 

.0554 

.8/2 

.11J4 

.225/2 



Cost. 



Price. 



S0.05J4 

.05 J^ 
.05^ 
•OSH 

.22/2 



G.\LVANIZE1). 

1| In. and Smaller. Per 
Cent Discount. 



IJ In. and Larger. Per 
Cent Discount. 



List. Cost. I Price. 



.^ ^ 







.0 cc 






^ '^ HH 




j^ "^ 


•.-^ a^ . 


3-C'S 


0/ t--^ K 






f^So 


^^63 


aj.r; 


1J S. Di 


i:Sc«^ 


s-sc*: 










1^ 


« 



Actual 
Diameter 
in Inches. 



.106 
.142 
.176 
.220 



.:34fi 
.434 



276.878 
196.428 
132.211 
103.928 
74.250 

57.747 
40.772 



.405 
.540 
.675 
.840 
1.050 

1.315 
1.660 



I 
.270 .068 
.364 .088 
.494 .091 
.623 .109 
.824|.113 

1.048!. 134 
1.3801.140 



.3() 
.57J4 

.75J4 

.95 
1.08 
1.30 
1.45 

1.88 
2.35 
2.82 
3.40 
4.25 

4.75 
5.20 



.27 
.30 
.57^ 



.75J4 

.95 
1.08 
1.30 
1.45 



1.88 
2.35 
2.82 



.494 
.622 
.753 

.916 
1.055 
1.175 
1.309 
1.455 



.739 
.996 
.257 
.519 
.816 

.140 
.344 
.(>(i3 
.921 

.182 



34.906 


1.900 


28.a)6 


2.375 


22.665 


2.876 


17.802 


3.500 


15.371 


4.(M1(» 


13.2S9 


4.5(HI 


11.8(17 


5.(MM1 


10.476 


5.563 


8. 660 


6.625 


7.425 


7.625 


6..50O 


8.625 


5.768 


9.625 


5.125 


10.750 


4. .571 


12.(HI0 


4.246 


12.7-,(l 


3.809 


14.II(NI 


5..''.40 


I'l.lKHI 


3.295 


16.0011 



1.611 
2.007 
2.468 

3.067 
3.548 
4.026 
4..''>08 
5.045 

6.065 
7.(123 

7.ils2 
S.937 
10.018 

11.250 
12. (11 Ml 
13.2.-IO 
14.250 
15.250 



.145 
.154 
.204 

.217 
.226 
.237 
.246 
.259 

.280 
.301 
.322 
.344 
.366 

.375 

.375 
.375 



Nov., 1901. CONDENSED LIST PRICE OF FITTINGS FOR WROUGHT-IRON PIPE. 



Diameter of Pipe y/^VxyA ViVM 1 



\Vx\ 15 



2^ 



ZYi 



^% 



Ellbows— M. I 

Tees " 

Crosses " 

Elbows— Cast Iron 

R. & L. &R"(iC. I. 

45° Mall. Iron .... 

45° Cast Iron 

Tees " 

" Rednc'g " — 

Crosses " 

'* Reduc'g " 

Bushings 

Caps, Cast Iron 

" IMall. Iron 

Couplings, W. I.— K. H 

w. \. i;.& I 

M.I.,1MI 

M. I., K.& L.... 

LockniitSjCast Iron 

" Mall. Iron 

Long Screws 

Nipples, Close and Shld 

" R. &L 

" I>oiig 

" R.&I 



50 
60 
l.(H) 
28 
32 
82 
34 
41 
47 
75 
83 
14 
26 
32 
28 
50 
35 
52 



1.70 

18 
24 



80 

1.05 

1.75 

U\ 

60 

1.60 

60 

73 

83 

1.30 

1.45 

21 

40 

45 

40 

85 

50 



40 

2.70 

39 



1.50 
1.70 
3.00 

85 

2.10 

90 

1.10 

1.25 

2.00 

2.20 

30 

54 

85 

(iO 

1.20 

1.00 
34 



2.25 
'1.50 
3.25 
1.05 
1.20 
3.00 
1.25 
1.50 
1.75 
2.70 
3.00 
40 
75 
1.50 
80 
1.60 



1.00 
1.05 
1.40 



3.00 
3.40 



1.20 
1.40 
4..50 
1.45 
1.75 
2.00 
3.15 
3.50 
5f) 
87 
2.(H1 
1.00 
2.00 



64 



6.(H) 
85 
1.15 
1.2(1 
1.60 



1 

2.00 



2.9: 
4.60 
5.10 



1.25 
1.70 



2.00 
2.30 



2. .50 
3.00 
3.50 
5..50 
6.00 
93 
1.20 



l.Oi 



1.55 
2.45 



2.75 
3.15 



3.45 
4.(X) 
4.()0 
7.25 
8.00 
1.25 
1..55 



2.40 



1.30 
1.8.5 



2.90 



GAS, AND WATER PIPE. 

OF STANDARD DIMENSIONS. 



Circumference. 


Transverse 


Areas. 


Length of Pipe 
per Sq. Foot of 


0) aj 
CP^ 


Si 

ISO 


am 


O . 


d 




"3 






eS OJ 


"3 oj 




a 


c 
a 




□ 


5 


i4 si 
X 3 


n2 




o 
15 


a: 

3S 


tHtM 

o_ 


Inches. 


Inches. 


Sq. Ins. 


.Sq. Ins. 
0573 


Sq. Ins. 
0717 


Feet. 


Feet. 


Feet. 


Lbs. 




1 272 


848 


129 


9 44 


14 15 


2513 


211 


27 


21-64 


1 696 


1 114 


229 


1041 


1249 


7 075 


10 49 


1383 3 


42 


18 


29-64 


2 121 


1553 


358 


1917 


1663 


5 657 


7 73 


751 2 


559 


18 


19-32 


2 639 


1957 


554 


304« 


2492 


4 547 


6 13 


473 4 


837 


14 


23-32 


3 299 


2 589 


866 


5333 


3327 


3 637 


4 635 


270 


1 115 


14 


15-16 


4 131 


3 292 


1 358 


8626 


4954 


2 904 


3 645 


166 9 


1 668 


11V„ 


1 3-16 


5 215 


4 335 


2 164 


1496 


668 


2 301 


3 768 


96 25 


2 244 


l]i/„ 


1 15-32 


b M 


5(tel 


2 835 


2 038 


797 


2 01 


3 3^1 


70 66 


2 07S 


11', 


1 2:3-32 


7 461 


6 494 


4 443 


3 356 


1 074 


1 608 


1 848 


42 91 


3 m> 


11', 


3 3-16 


9 032 


7 753 


6 492 


4 784 


1 703 


1 328 


1 547 


30 1 


5 739 


8 


'^ •a 


10 996 


9 636 


9 621 


7 388 


2 243 


1 091 


1 245 


19 5 


7 536 


8 


3 M 


12 566 


11 146 


12 566 


9 887 


2 679 


955 


1 077 


14 57 


9 001 


8 


3 Ji 


14 137 


13 648 


15 904 


12 73 


3 174 


849 


949 


11 31 


10 665 


8 


4 ^i 


15 708 


14 162 


19 635 


15 901 


3 674 


764 


848 


9 02 


12 34 


8 


4 % 


17 477 


15 849 


24 306 


19 99 


4 316 


687 


757 


7 2 


14 502 


8 


5 5-16 


20 813 


19 054 


34 472 


28 888 


5 584 


577 


63 


4 98 


18 762 


8 


6 5-16 


23 955 


22 063 


45 664 


38 738 


6 926 


501 


544 


3 72 


23 271 


8 


7 % 


27 096 


25 076 


58 426 


50 04 


8 386 


443 


478 


2 88 28 177 1 


8 


8 Vi 


30 238 


28 076 


72 76 


62 73 


10 03 


397 


427 


2 29 


33 701 


8 


9 19-32 


33 772 


31477 


90 763 


78 839 


11 924 


355 


382 


1 82 


40 065 


8 


10 13-16 


37 699 


35 343 


113 098 


89 402 


13 696 


318 


339 


1 456 


45 95 


8 




40 055 


37 7 


127 677 


113 098 


14 579 


299 


319 


1 27 


48 985 


8 




43 982 


41 626 


153 938 


137 887 


16 051 


273 


288 


1 04 


53 921 


8 




47 124 


44 768 


176 715 


159 485 


17 23 


255 


2(i8 


903 


57 893 


8 




50 265 


47 909 


201 062 


182 655 


18 407 


239 


259 


788 


01 77 


8 





FITTINGS FOR WROUGHT- IRON PIPE - CONTINUED. 





'/ 


..^1 


1^ 


K 


1 


.K 


1 U 


o 


2/2 


3 


3/. 


4 


41/; 


r 


6 




A ."1 ... 


1/2 1 - 


4/2 1 . 


Return Bends, C. P., C. I... 






18 
21 
13 

24 
28 


20 22 

23 20 
25 35 
2(; 30 
30 35 
as' 42 
.. 26 
.. 26 
08 9 

24 30 
36 45 
\\ 2 

27 33 
4(! 52 

2 3 
37, 50 

28 34 
33 40 
45 70 
67 105 
90 140 

3 4 
G 8 

..1 .. 
10 1(> 
,50 55 


28 

33 

50 

40 

46 

60 

33 

33 

10 

48 

70 

3 

40 

64 

4 

77 

54 

62 

l.(K) 

1..50 

2.00 

i) 

20 
60 


40 
46 

5!5 
64 
80 


57 
66 

1.00 
80 
92 

1.15 


1.20 
1.40 


1.70 
1.95 












" C.P.C.1.K.& L. 
C. P., M. I. 












C. I., Open 


1.35 
1..55 
2.00 


2.20 
2. ,50 
3.00 












" C.I.,op.K.& L. 
" Cl. I.op. B. (). 
" r.P.C.Lpitfhed 
" C.P.C.I.K.&L. 
































i5 


<)9 


' 35 
1.50 
2.25 

i.".55 
1.25 


"45 

2.25 
3.25 

2.10 
1..50 












Side Outlet Elbows, C. I. . . . 

" Tee, CI 

Tinned Straps, S. Iron 


1 

18 


2?,' 

37 

1 

18 


18 
'l 
40 

u 

28 
20 
23 


GO 84 

90 1.25 

4| 5 

581 75 

78 1.00 

5i 6 

1.12 1.65 

66 94 

7C>1.08 

1.20 1.80 

1.80 2.70 

2.40 3.{>0 

7 10 

11 1'^ 


3.15 
4..50 

3.(>5 
1.80 


3.60 
5.25 

4.35 
2.10 


5.25 
7.65 

2.70 


6.00 8.25 
9.00 12.00 




3.15 3.95 


\V I Hooks 


1 


W. \. Service Bends 

Y Brandies, 0. I 

" IteduciuK 

Offsets, to set off 4 in 


1.06 
1.90 
3.00 
4. ,50 
6.00 
18 

60 

70 

1.50 


2..50 
2.90 
4.(M) 
O.IM) 
8.(10 
25 

"so 

1.00 
2.40 


3. .50 
4.(H» 
5.(H) 
7.,50 
10.00 
.,38 

l.(X) 
l.,50 
3.(M) 


4.00 
4.iW 
6.(M) 
9.(H) 
12.00 
42 
1.30 
l.:i5 
1.85 
4.fH1 


5.90 
6.80 

65 
l'.,S5 


V.OO 9.20 
8.00 10.60 


" 6 " 

" 8 " 


2 


2 


2 

4 

5 


12.00, 15.(K) 

Ki.OO; 20.00 

88 1.20 




Beducing Coupling, C. I. .. . 
Offset!! 


3 

•• 


3 


28 
70 


43 

45 

1.00 


2.00 
6.00 


2.70 

koo 



Kight and Left and Left Hand Fittings not s|)ecilied above will be cliarged 15 per (rent, 
more than Kight Hand Fittings. 

3 9 



CAPACITIES OF BOILERS. 



FOR HOT WATER HEATING 
APPARATUS. 

And capable of maiatainingr the temper- 
ature of the water in the Apparatus at 
180° Fahr. over night without attention. 
(G. E. Dixon.) 


FOR LOW PRESSURE STEAM HEAT- 
ING APPARATUS. 

And capable of maintaining steam over 
night without attention. (G. E. Dixon.) 


Boiler Surface 

in 
Square Feet. 


Total Direct 
Radiation in 
Square Feet. 


Direct Radi- 
ation Per Sq 
Foot of Boil- 
er Surface. 


Boiler Sur- 
face in 
Square feet. 


Total Direct 
Radiation in 
Square Feet. 


Direct Radiation 
Per .Square Foot 
of boiler surface 


20 


110 


5.50 


JO 


168 


4.20 


30 


181 


6.03 


50 


218 


4.36 


40 


257 


6.42 


60 


272 


4.53 


50 


338 


6.76 


80 


384 


4.80 


GO 


425 


7.08 


100 


504 


5.04 


70 


512 


7.46 


120 


62G 


5.21 


80 


G03 


7 54 


140 


752 


5 37 


90 


695 


7.72 


152 


830 


5 46 


100 


792 


7.92 


172 


962 


5.60 


120 


991 


8.26 


194 


1114 


5.74 


140 


1198 


8.56 


211 


1232 


5.84 


159 


1400 


8.80 


252 


1522 


6.04 


199 


1842 


9.25 


292 


1816 


6.21 


225 


2142 


9.52 


295 


1840 


6.23 


279 


2788 


9.99 


347 


2240 


6.45 


323 


3332 


10.31 


399 


2642 


6.62 


372 


3970 


10 68 


421 


2820 


6.69 


453 


5065 


11.18 


482 


3321 


6.89 


517 


5938 


11.48 


1 541 


3818 


7.05 



The quantities of radiation in the above table are cxclusiv^o of all piping. 
One sqviare foot of Indirect requires the same boiler capacity as I'-j square feet of 
Direct Radiation. From John Davis Company's catalogue, by permission. 

TEMPERATURE OF STEAM, PRESSURE OF AVATER AND CAPACITY OF TANKS. 



Degree of Heat Per 


Pressure per Sq. in. 
per ft. Head of 






Lb. Pressure of 


TANK CAPACITY. 


Steam. 


Water. 






Pounds 
Pressure. 


D egrees. 


Feet 
Head. 


Equals Pres- 
sure per sq. in. 


Diameter. 


Gallons 
Per Foot of Depth . 





212 


1 


.43 


2 Feet Inches 


23.5 


1 


215 


2 


.87 


2 *• 6 


36.7 


o 


219 


3 


1.30 


3 " 


52.9 


3 


222 


4 


1.73 


3 " 6 


72.0 


4 


2-^ 


5 


2.16 


4 " 


94.0 


5 


227 


10 


4.33 


4 " 6 


119.0 


6 


230 


15 


6.49 


5 " 


146.9 


7 


232 


20 


8.66 


5 " 6 


177 7 


8 


235 


25 


10. h2 


6 " 


221.5 


9 


238 


30 


12.99 


6 " 6 


248.2 


10 


240 


35 


15.16 


7 " 


287.9 


15 


250 


40 


17.32 


7 " 6 


330.5 


20 


259 


45 


19.49 


8 " 


376.0 


25 


267 


50 


21.65 


8 '* 6 


424.5 


30 


274 


55 


23.82 


9 " 


475.9 


35 


281 


60 


25.99 


9 " 6 


530.2 


40 


286 


65 


28.15 


10 " 


.587.5 


45 


292 


70 


30.33 


11 " 


710.9 


50 


298 


75 


32.48 


13 " 


846.0 


55 


303 


80 


34.65 


13 " 


992.0 


60 


307 


85 


36.82 


14 " 


11.51.5 


65 


312 


90 


38.98 


15 " 


1321.9 


70 


316 


95 


41.15 


20 " 


23.50.1 


75 


320 


100 


43 31 


25 " 


3670.0 


80 


324 


115 


49.50 


30 •' 


5387.7 


85 


328 


130 


55.90 


35 '• 


7197.1 


90 


331 


150 


64.50 


40 " 


9400.3 


95 


334 


175 


75.25 






100 


338 


200 


86.15 







40 



MEMORANDA 



MEMORANDA 



USEFUL INFORMATION. 

STEAM. 

A CUBIC inch of water evaporated under ordinary atmospheric pressure is converted into 
1 cubic foot of steam (approximately). 

The specittc gravity of steam (at atmospheric pressure) is .411 that of air at 34^ Fahrenheit, 
and .0006 that of water at same temperature. 

•27,'222 cubic feet of steam weigh 1 pound ; 13,817 cubic feet of air weigh 1 pound. 

Locomotives average a consumption of 3,000 gallons of water per 100 miles run. 

The best designed boilers, well set, witli good draft and skilful firing, will evaporate 
from 7 to 10 lbs. of water per pound of lirst-class coal. 

In calculating horse-power of Tubular or Flue boilers, consider 15 square feet of heating 
surface equivalent to one nominal horse-power. 

On one square foot of grate can be burned on an average from 10 to 12 lbs. of hard coal, 
or 18 to 20 lbs. of soft coal, per hour, witli natural draft. With forced draft nearly double 
these amounts can be burned. 

Steam Engines, in economy, vary from 14 to 60 lbs. of feed water and from It to 7 lbs. of 
coal per hour per indicated H. V. See table below for duty of high grade engines! 

Condensing engines require from 20 to 30 gallons of water, at'an average low temperature 
to condense the steam represented by every gallon of water evaporated in the boilers' sup- 
plying engines — approximately for most engines, we say, from 1 to li gallons condensing 
water per minute per indicated'horse-power. 

Surface Condensers should have about 2 square feet of tube (cooling) surface per horse- 
power for a compound steam engine. Ordinary engines will require more surface according 
to their economy in the use of steam. It is absolutely necessary to place air pumps below 
condensers to get satisfactory results. 

RATIO OF VACUUM TO TEMPERATURE (FAHRENHEIT) OF FEED WATER. 



00 inches, Vacuum 212° 

11 „ „ 190° 

18 „ „ .. ..ITOo 



22J^ inches. Vacuum 150° 

*25" „ „ 135° 

27* „ „ 112° 



28i inches, Vacuum 92° 

29 „ 72° 

29i „ „ 52° 



•Usually considered the standard point of efficiency — Condenser and Air Pump being well proportioned. 
WEIGHT AND COMPARATIVE FUEL VALUE OF WOOD. 

1 Cord Air-dried Hickory or Hard Maple weighs about 4,500 lbs., and is equal to about 2,000 

lbs. coal. 
1 ,, „ White Oak weighs about 3,850 lbs., and is equal to about 1,715 lbs. coal. 

1 ,, ,, Beech, Red Oak, and Black Oak weighs about 3,250 lbs., and is equal to 

about 1,4.50 lbs. coal. 
1 ,, ,, Poplar (whitewood). Chestnut, and Elm weighs about 2,350 lbs., and is 

equal to about 1,050 lbs. coal. 
1 ,, ,, Average Pine weighs about 2,000 lbs., and is equal to about 925 lbs. coal. 

From the above it is safe to assume that 'Z\ lbs. of dry wood is equal to 1 lb. average 
quality of soft coal, and that the full value of the same iveir/ht of different woods is very 
nearly the same — that is, a pound of hickory is worth no more for fuel than a pound of pine, 
assuming both to be dry. It is important that the wood be dry, as each 10 per cent, of water 
or moisture in wood will detract about 12 per cent, from its value as fuel. 

DUTY OF STEAM ENGINES. 



A well-known engineer of high authority gives the following comparative figures showing 
the economy of high grade steam engines in actual practice : 



Type of Engine. 


Lbs. of Water 
Temperature i Evaporated per 
of Feed Water. > lb- or Cum- 
berland Coal. 


Pounds of 

Steam per 

1 H. P. used 

per hour. 


cTrbe'iU^d ^!z}^ 

Coal u^ed per '^iHi^^i^lir 
hour ''^ *''-^ per ton. 


Non-Condensing 


210° 
100° 
100° 
100° 


10.5 
9.4 
94 
9.4 


29. 2.75 


$0.0073 


Condensing 

Compound Jacketed 

Triple Exi)ansion Jacketed. 


20. 
17. 
13.6 


2.12 
1.81 
1.44 


0.0056 
0.0045 
0.0030 



*#*The effect of a good condenser and air pump should be to make available about 10 lbs. 
more mean effective iiressure than the same terminal pressure; or to give the same mean 
effective pressure with a corres])ondingly less terminal pressure. When the load on the 
engine requires 20 lbs. M. E. 1"., the condeiLser does half the work; at 30 lbs., one third of the 
work; at 40 lbs., one fourth, and soon. It is safe to assume that practically the condenser 
will save from one fourth to one third of the fuel, and it can be applied to any engine cut-oft', 
or throttling, where a suflicient supply of water is available. 

THE ABOVE IS FROM WALWORTH MFG. CO.'S POCKET PRICE-LIST BY PERMISSION. 



WATER. 



TROUBLING the diameter of a pipe increases its capacity four times. Friction of liquids 
^-^ in pipes increases as the square of the velocity. 

The mean jtressure of the atmosphere is usually estimated at 14.7 Ihs. per square inch, so 
that with a perfect vacuum it will sustain a column of mercury 29.9 inches or a column of 
water 33.9 feet high at sea level. 

To find the pressure in pounds per square inch of a column of water, multiply the height 
of the column in feet hy .434. Ai)iir<ixitiuitely, we say that every toot elevation is equal to 
^ lb. pressure per square incli ; this allows for ordinary friction. 

To find the diameter of a pump <■//////(/(■/■ to move' a given quantity- of water per minute 
(100 feet of piston being the standard of speed), divide the number of gallons by 4, then 
extract the square root, and the product will be the diameter in inches of the purnj) cylinder. 

To find quantity of water elevated in one minute running at 100 feet of piston sj/eed per 
minute, square the diameter of the water cylinder in inches and multiply by 4. Example: 
Capacity of a 5 inch cylinder is desired. The square of the diameter (5 inches) is 25, which, 
multiplied by 4, gives'lOO, the number of gallons i)er minute (approximately). 

To find the horse power necessary to elevate water to a given height, multiply the weight 
of the water elevated per minute in pounds by the height in feet, and divide the product by 
33,000 (an allowance should be added by water friction, and a further allowance for loss in 
steam cylin<ier, say from 20 to 30 per cent). 

The area of the Steam /^(".s/o/i multiplied by the steam pressure gives the total amount 
of pressure that can be exerted. Tlie area of the ivatcr jjiston multiplied by the pressure of 
water per stpiare inch gives the resistance. A marr/in must be made between the jioiver 
and the 7r.s/.s/a//r," to //(orr the pistons at the required speed — say from 20 to 40 ijer cent., 
according to speed and other conditions. 

To fiiul the raparifij of a, rijlinder in gallons. ]\Iultiplying the area in inches by the 
length of stroke in inches will give the total number of cubic inches; divide this amount by 
2.31 (which is the cubical contents of a U. S. gallon in inches) and the product is the capacity 
in gallons. 

WEIGHT AND CAPACITY OF DIFFERENT STANDARD GALLONS OF WATER. 



Cubic Inches 
in a Gallon. 



Weight of a Gal- 1 
Ion in pounds. 



Gallons in a 
Cubic Foot. 



Imperial or English . 
United States 



277.274 
231. 



10.00 
8.33111 



6.232102 

7.480519 



Weight of a cubic foot 
of water, English stand- 
ard, G2.321 lbs. Avordu- 
pois. 



Weight of Criule Petroleum, 6^ lbs. per U. S. gallon, \ ^^ „ ^ ^^ ^ , 
Weight of Refined ,, tji lbs. per L. S. gallon, ) *' 

A " miner's inch " of water is approximately equal to a supply of 12 U. S. gallons per minute. 



FIRE STREAMS. 

Pressures required at nozzle and at pump, with quantity and pressure of water necessary 
to throw water various distances through different sized nozzles — using 2i inch rubber 
hose and smooth nozzles. 

G. A. Ellis, C. E. 



Size of Nozzles. 


1 Inch. 


IJ Inch. 


IJ Inch. 18 Inch. 


Pressure at nozzle 

*Pressure at Pump or ) 
Hydrant with 100 ft. [ 
2.^ inch rubber hose. ) 

Gallons per minute 

Horizontal dist. thrown 
Vertical dist. thrown. . . 


40 

48 

155 

109 

79 


60 

73 

189 
142 
108 


80 

97 

219 
168 
131 


100 

121 

245 
186 
148 


40 

54 

196 
113 
81 


60 

81 

240 
148 
112 


80 

108 

277 
175 
137 


100 

135 

310 
193 
157 


40 
61 

242 

118 

82 


60 

92 

297 
156 
115 


80 

123 

342 
186 
142 


100 

154 

383 
207 
164 


40 

71 

293 
124 

85 


60 

107 

358 
166 
118 


80 

144 

413 
200 
146 


100 

180 

462 
224 
169 



*For greater lengths of 2| hose the increased friction can readily be obtained by noting 
the dilferences between the above given "pressure at nozzle" and "pressure at pump or 
hydrant with 100 feet of hose." For instance, if it requires at hydrant or pump 8 lbs. more 
pressure than it does at nozzle to overcome the friction when pumping through 100 feet of 
2J inch hose (using 1 inch nozzle, with 40 lb. pressure at said nozzle), then it requires 16 lbs. 
pressure to overcome the friction in forcing through 200 feet of same size hose. 



THE ABOVE IS FROM WALWORTH MFG. CO.'S POCKET PRICE-LIST BY PERMISSION. 



L»fC. 



Wiiter occupies the least space when at ;»° Fht. 
Water expands about one-tenth of its bullv in freezing. 

Water expands about one-twenty-liftli of its bulk when heated from 40° to 
200° Flit. 

Ice weighs 56}^ lbs. per cubic foot. 

The U. S. Standard gallon measures 231 cubic inches and contains 8J^ lbs. 
distilled water. 

A cubic foot of water weighs 62J^ lbs. (salt water 64.3 lbs.) and contains 1,728 
cubic inches, or nearly 7J^ gallons U. S. Standard. 

To evaporate one cubic foot of water requires the consiuni)tion of TJ^ lbs. of 
ordinary coal ; or about one lb. of coal to one gallon of water. 

United States gallons multiplied by .i;«3(;7 equals cubic feet. 

A barrel contains 7,i!89 cubic inches. 

Gallons per second x 474.08 = cubic feet i>er hour. 

Gallons per minute x 7.9 = cubic feet per hour. 

One cubic foot of anthracite coal weighs about r,:i lbs. 

One cubic foot of bituminous coal weighs about 47 to 50 lbs. 

One ton of coal is equivalent to two cords of wood for steam purposes. 

One ton of anthracite coal occupies abont 36 cubic feet of space. 

One ton of bituminous coal occupies about 41 cubic feet of space. 

Cast iron weighs 450 lbs. per cubic foot, and castings of crucible steel about 
the same. 

Wrought iron weighs 48{i.C jjounds per cubic foot. 

A i)late of wrought iron one foot square, one inch thick, may be reckoned at 40 
pounds, but 40.55 pounds is more exact. 

A cubic inch of cast iron weighs .2(1; tin, .24(;: wrought iron, .281; brass, ..311: 
copper, .321 and lead, .411 pounds. 

To find circumference of a circle multiply diameter by 3.1416. 

To find diameter of a circle multii)ly circumference by .31831. 

To find area of a circle multiply scjuare of diameter by .7854. 

' To find area of a triangle multiply base by one-half of the perpendicular Una. 

To find surface of a ball multiply square of diameter by 3.1416. 

To find solidity of a sphere multiply cube of diameter by .5236. 

To find side of an equal square multiply diameter by .8862. 

To find cubic inches in a ball multiply cube of diameter by .5236. 

The hypotheinise of a right angle triangle is equal to the square root of tlie 
sum of the squares of the two sides. 

There are many different boiler comi)ounds prepared and sold by various 
makers, nearly all of which are effective in certain kinds of water. Among the best 
is one composed of: 

Sal Soda 40 lbs. 

Catichu 5 " 

Sal Ammoniac 5 " 

One of the best varnishes for smoke-stacks or steam-pipes is good asphaltum 
dissolved in oil of turpentine. 

Oxalic acid dissolved in soft water, say K <iii ounce to a i)int, is one of the best 
known means for cleaning and brightening brass work. 

Iron or steel, immersed warm in a solution of carbonate of soda (wasliing soda) 
for a few minutes, will not rust. 



A solvent for Rust. — It is often very difficult and sometimes Impossible to re- 
move rust from articles made of iron. Those which are most thickly coated, are most 
easily cleaned by beint; inuiiersed in a solution, nearly satiu'ated, of cliloride of tin. 
The length of time tlicy remain In this bath is dt'tt'iiiiined by tlic thickness of the 
coating of rust. Generally twelve to twenty-four hours is long'euougli. Tlie solution 
ought not to contain a great excess of acid, if the iron itself be not attacked. On 
taking them from till' hatli, the arti<'les are rinsed, first in water, then in annnonia, 
and quickly dried. The iron, when thus treated, has the appearance of dull silver. 
A siinjile polishing gives it its normal appearance. 

To remove Bust from Steal. — Brush the rusted steel with a i>aste composed. of 
% oz. cyanide potassium, ]4 oz. castile soap, 1 oz. whiting, and enough water to make 
a paste. Then wash the steel in a solution of % oz. cyanide of potassium in 2 ozs. 
of water. 

Kust Joint.— (For quick setting.) Sal ammoniac powdered, 1 lb; flour of 
sulphur, 2 lbs; iron borings, 80 lbs; mix to a paste with watei'. (Slow setting.) Sal 
ammoniac, 2 lbs; suli)hur, 1 lb; iron borings, 2(K) lbs. The latter is best if the joint is 
not needed for use at once. 

To Brighten Tarnished IMass and Copper. — Clean the brass by warming it, ana 
dipping in water charged with washing soda, then into clean water to remove the 
grease. Next dij) it in a bath of one i)art, by me;isure, of sulidiuric acid, oiu' part s;il 
ammoniac, two parts nitric acid, ;iiid four i)arts water. Dip for a moment, then <lip 
into clear water, and dry ill hot sawdust. ( >xalic ai-id dissolved in soft water, say J^ 
ounce to a. pint, is oiii- of the best kiu)wn means for cleaning and brightening 
brass work. 

To Cut a (ikvss-gauge Tube. — If a glass-gauge tube is too long, take a three- 
<!ornere(l tile and w ct it ; hold the tube in the left hand with the thnml) ;iiid fore-finger 
at the place w hei'e you wish to cut : saw it (|nickly and lightly two or three times with 
the edge of-tlie tile 'and it will mark the glass. 'Now t;ike 'the tube in lioth hands, 
both luimlis being oil the opposite side to the mark, and about an iiudi aii;irt, then 
try to bend the glass using \(>ur thumbs as fulcrnms, ;ind it will break at the mark 
which has weakened the time. 

To Keep Machlneiy from IJusting. — Take one ounce of cami)hor, dissolve it in 
one pound of melted lard: take off the scum and mix in as much tine black lead as 
will give it iron color. Clean the niachineiy and smear It with this mixture. After 
twenty-four hours rub with a soft linen "cloth until clean. It will keep clean for 
months under ordinary circumstances. 

To Clean Brass (F. S. (ioveinmeiit ^Method.)— Make ;i, mixture of one i>art 
eonunon nitric acid and one-half ]iart siilphiiiic ai'id in ;i stone jar, having also a pall 
of fresh water and a box of sawdust. Dip the articles Into the acid, and then soak 
them in the water and liiially rub them in the sawdust and they will take on a brilliant 
color. If file l>rass is greasy, it must he liist diiiped Into a strong solution of iiotash 
and soda in water, and then' rinsed, so that tlie grease may be removed leaving the 
acid free to act. 

To find tlie diameter of a iium]) cylinder to move a given iiuantity of water per 
minute, divide the iiiinil)er of gallons by 4, then extract the .s([uare root, and the 
product will be the diameter in inches of :'i imnip cyliiuler required to do the work at 
a piston travel of KM) ft. per miiuite. 

"When yon have to repair your boiler furnace and can't get any fire clay, take 
common earth mixed with water in which you have dissolved a little salt; use same 
as lire clay. 

How to Write Iuscrii)tions on :\letals. — Take 4 ozs. of nitric acid and 1 oz. of 
muriatic acid, mix and shake well together, and it is ready for use. Then cover your 
metal surface to be engraved witli beeswax or soap, write vour Inscriijtion plainly in 
.he wax clear to the nietal, then a|)|ily the mixed acids with a feather or a stick of 
wood, carefully filling eacli letter, let it remain from five to ten minutes, according to 
appearance desired, then throw on water, which stops the etching jirocess, and the 
inscription is completed. 

Cement to Fasten Iron to Stone. — Take 10 parts of fine iron filings, 30 jiarts of 
plaster of paris, and % part of sal ammoniac; mix with weak vinegar to a flmd paste 
and apply at once. 



46 



Advertisements 



THE reputation of those whose 
advertisemements appear on the 
following pages is too well estab= 
lished to need comment, therefore 
I commend them to your confidence. 
It will be a kindness to them, 
as well as myself, if when writing 
them you will make known the 
fact of having seen their business 
card in this book. 



Greenhouse 



Cypress 



RELIABILITY 
DURABILITY 

QUALITY 



LARGEST STOCK of air-seasoned, strictly clear Cypress. 
Bright, as well as stained sap all cut out. 

Twenty Years Experience, 

Jhmple Facilities, 

Enable us to give the COMMERCIAL GROWER better material, 
workmanship, and service than any other manufacturer. 

WRITE FOR ESTIMATES. 

PLANS FURNISHED WITHOUT CHARGE 

PRIVATE GROWERS can safely trust their work to us, as this class 
of Greenhouse construction always receives our special attention. 
Plans for each individual requirement without charge. 



Lockland Lumber Co. 

HOT BED SASH. 

RED CEDAR POSTS. Lockland, Ohio. 



STUDY HEATING BY MAIL. 

YOU can obtain a thorough knowledge of the principles of Steam, Hot 

Water, and Hot Air heating, and their practical application, through 

our course in Heating and Ventilation, which is taught entirely by Mail. 



WE ALSO TEACH 



Mechanical, Steam, Electrical, Telephone, Telegraph, Civil and Mining 
Engineering ; Shop and Foundry Practice ; Mechanical Drawing ; Archi- 
tecture ; Plumbing ; Sheet Metal Pattern Drafting ; Chemistry ; Orna- 
mental Design ; Lettering ; Bookkeeping ; Stenography ; Teaching Eng- 
lish Branches ; Locomotive Running ; Electrotherapeutics ; German ; 
Spanish; French. Circular FREE. State subject that interests YOU. 

International Correspondence Schools, 

SCRANTON, PA. 



4-8 



Samuel S* Pennock 

Wholesale Florist 



WE MAKE A SPECIALTY 
OF FLORISTS' RIBBONS 



1612-14-16-18 Ludlow Street, 

PHILADELPHIA. 



FOR HOT WATER HEATING 

IN GDEENHOUSES 

L. 0. KOVEN & BROTHER'S 

ANTI -WASTE EXPANSION TANKS 

should always be used. Expansion 
Tankst Galvanized Iron Range Boilers, 
Filters, Water Tanks, Riveted Pipe, 
Mixing Tanks, Smoke-stacks and Sheet 
Iron Work of Every Description ^ 

L. O. KOVEN iSh BROTHER 

50 Cliff St., NEW YORK 



49 



For Twenty Years 




The ^^MINNEAPOLIS^^ 

Heat Regulator has been PROFITABLE 
to DEALER and CONSUMER,— 
suitable for hot water, hot air, steam or 
combination heat, street steam, and natural 
gas. Installed at any time, — automatic, 
operates on a change of 1° Thermostat 
changed from one temperature point to 
another instantly. Thousands in use in 
Greenhouses. Satisfaction guaranteed, — sold 
subject to approval. Price and illustrated 
booklet upon application. 



Electric Heat Dcgulator Company 

First Ave. and D St. - - MINNEAPOLIS, MINN. 



the... 

Underwood 
Cvpewritcr 



"WRITING ALWAYS 
IN SIGHT." 



FIRST PRIZE Pan-American Exposition, Buffalo, 1901. 

FIRST PRIZE at Venice, 1901. Send for Catalog. 



WAGNER TYPEWRITER CO. 
206 Devonshire SI. cor. FranKlin, BOSTON, MASS. 

TELEPHONE MAIN 3001. 




50 



"Ma says there ain't no use doin' nothin' fer nobody that 
don't do nothin' fer you."— SIS HOPKINS. 



SIS HOPKIN'S Ma was right. Advertisers who 
wish to reach the PItimbing and Steam and Hot 
Water Heating: trade, and are tired of ** doin* somethin' 
fer somebody that don^t do nothin' fer them/^ will be 
gratified by the results obtained from regularly adver- 
tising in •••»•>»>£'<• 4a •• 





|l\^JiM lil^^; 



11 fi 1^1 1 kK 






:,iiii 

1^ ^S^-5-=C^ C^^^Sfj fj 



tm\mmmm%mrt\ 




Its always ** doin* '* something for you. 

Postal us for a sample copy and look over the 
list of manufacturers and jobbers who are reaping the 
benefit of our large and exclusive circulation. 

P. S- — Incandescent Lighting Specialties are also advertised in 
our columns, and li/ceivise Acetylene goods. 



Cbe Plumbers' Craac journal 

61 Bcckman Street, NEW YORK, 



51 



AUTOMATIC BOILER FEEDERS, 
STEAM TRAPS, 

Automatic Cellar Drainers. 

THERMOMETERS, AIR VALVES, 




VALVES, RADIATORS, GAGES, 
SEAMLESS FLOATS, ENGINE 
INDICATORS, ALL SPECIALTIES 

and a full line of Tools and Materials for 
Steam Fitting, Gas Fitting and Plumbing 



Gilbert H. Aymar G. W. A. Bradlee 

Aymar & Bradlee, 

Stationery rypeWfltSt ....Printing 

SUPPLIES 



TREMONT BUILDING, ROOM 226 



Telephone, 769, -.-^^^^^-r-f.^-, •, ■»■»•. ^^ 

Haymarkel BOSTON, MASS. 



Book for Heating 
ENGINEERS 

DEAN^S STEAM FITTERS 
COMPUTATION and PRICE 
BOOK=^ = 

Has Tables of Cubic Contents. Tables Giving 
Amount of Radiation. Ratings of Boilers, 
Radiators, etc., etc. 

Saves ^f r.r^ ^ ^^ $5.00 

MARK DEAN 
BOSTON, MASS. 



53 



,pH 



^a 



Zv 



APH. 2B 1902 



MAY 3 1902 



